Described in detail herein are systems and methods for determining in situ locations of physical objects using mobile devices within a facility. Multiple mobile devices may scan different identifiers of different physical objects disposed in a facility. The mobile devices may transmit the identifiers to a distributed computing system. The distributed computing system may query a database to determine the in situ location of the physical objects associated with the identifiers. In response to not being able to retrieve a in situ location of a physical object, the distributed computing system may determine a path of the mobile device which transmitted the identifier associated with the physical object with the unknown in situ location. The distributed computing system may determine the in situ location of the physical object for which the in situ location was unknown based on the path and the known locations of the other physical objects.