Finding the Fourth Proportional to 109.43, 151.01 and 83.15

Step by Step Solution

1. Step 1: Write the proportion equation
   109.43 : 151.01 = 83.15 : x
2. Step 2: Convert to fraction form
   109.43/151.01 = 83.15/x
3. Step 3: Cross multiply
   109.43x = 151.01 × 83.15
4. Step 4: Simplify right side
   109.43x = 12,557.07
5. Step 5: Solve for x
   x = 12,557.07/109.43
6. Step 6: Final answer
   x = 114.76