Finding the Fourth Proportional to 100.83, 151.33 and 100.07

Step by Step Solution

1. Step 1: Write the proportion equation
   100.83 : 151.33 = 100.07 : x
2. Step 2: Convert to fraction form
   100.83/151.33 = 100.07/x
3. Step 3: Cross multiply
   100.83x = 151.33 × 100.07
4. Step 4: Simplify right side
   100.83x = 15,143.59
5. Step 5: Solve for x
   x = 15,143.59/100.83
6. Step 6: Final answer
   x = 150.19