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Finding the Fourth Proportional to 123,017.43, 169,759.70 and 74,624.90

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Solution

The fourth proportional to 123,017.43, 169,759.70 and 74,624.90 is: 102,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,017.43 : 169,759.70 = 74,624.90 : x
  2. Step 2: Convert to fraction form
    123,017.43/169,759.70 = 74,624.90/x
  3. Step 3: Cross multiply
    123,017.43x = 169,759.70 × 74,624.90
  4. Step 4: Simplify right side
    123,017.43x = 12,668,299,694.45
  5. Step 5: Solve for x
    x = 12,668,299,694.45/123,017.43
  6. Step 6: Final answer
    x = 102,979.71

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