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Finding the Fourth Proportional to 128,003.86, 176,645.37 and 71,414.02

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Solution

The fourth proportional to 128,003.86, 176,645.37 and 71,414.02 is: 98,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,003.86 : 176,645.37 = 71,414.02 : x
  2. Step 2: Convert to fraction form
    128,003.86/176,645.37 = 71,414.02/x
  3. Step 3: Cross multiply
    128,003.86x = 176,645.37 × 71,414.02
  4. Step 4: Simplify right side
    128,003.86x = 12,614,955,986.09
  5. Step 5: Solve for x
    x = 12,614,955,986.09/128,003.86
  6. Step 6: Final answer
    x = 98,551.37

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