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Finding the Fourth Proportional to 129,854.97, 179,199.14 and 72,490.97

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Solution

The fourth proportional to 129,854.97, 179,199.14 and 72,490.97 is: 100,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,854.97 : 179,199.14 = 72,490.97 : x
  2. Step 2: Convert to fraction form
    129,854.97/179,199.14 = 72,490.97/x
  3. Step 3: Cross multiply
    129,854.97x = 179,199.14 × 72,490.97
  4. Step 4: Simplify right side
    129,854.97x = 12,990,319,481.77
  5. Step 5: Solve for x
    x = 12,990,319,481.77/129,854.97
  6. Step 6: Final answer
    x = 100,037.14

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