182.6 miles ... 83%
x miles ... 100%
We would like to know how many miles long is their trip (x miles). You can calculate this in the following way:
x * 83% = 182.6 * 100%
x * 83/100 = 182.6 * 100/100
x = 182.6 * 100/83
x = 220 miles
The result is 220 miles.