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Finding the Fourth Proportional to 127,788.52, 176,348.88 and 74,105.40

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Solution

The fourth proportional to 127,788.52, 176,348.88 and 74,105.40 is: 102,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,788.52 : 176,348.88 = 74,105.40 : x
  2. Step 2: Convert to fraction form
    127,788.52/176,348.88 = 74,105.40/x
  3. Step 3: Cross multiply
    127,788.52x = 176,348.88 × 74,105.40
  4. Step 4: Simplify right side
    127,788.52x = 13,068,404,291.95
  5. Step 5: Solve for x
    x = 13,068,404,291.95/127,788.52
  6. Step 6: Final answer
    x = 102,265.87

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