About how many people lived in chicago in 1900 than in 1860

112172 people lived in Chicago in 1860. 1698575 people lived in Chicago in 1900.

Between 1860 and 1900, the percentage of people living in the West and Midwest increased.

that is the answer

Explanation:

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.