Finding the Fourth Proportional to 111.75, 167.43 and 101.61

Step by Step Solution

1. Step 1: Write the proportion equation
   111.75 : 167.43 = 101.61 : x
2. Step 2: Convert to fraction form
   111.75/167.43 = 101.61/x
3. Step 3: Cross multiply
   111.75x = 167.43 × 101.61
4. Step 4: Simplify right side
   111.75x = 17,012.56
5. Step 5: Solve for x
   x = 17,012.56/111.75
6. Step 6: Final answer
   x = 152.24