148 employees is 4% of what number of employees
Let n represent the number of employees.
Then 4% of n = 148
Replace 'of'' with 'times'
4% of n = 148
4% · n = 148
Since 4% = 0.04:
0.04 · n = 148
Divide by 0.04:
0.04 · n ÷ 0.04 = 148 ÷ 0.04
n = 3700
148/0.04
= 3700 employees