Home / 123,057.38-169,819.25-66,468.75

Finding the Fourth Proportional to 123,057.38, 169,819.25 and 66,468.75

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Solution

The fourth proportional to 123,057.38, 169,819.25 and 66,468.75 is: 91,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,057.38 : 169,819.25 = 66,468.75 : x
  2. Step 2: Convert to fraction form
    123,057.38/169,819.25 = 66,468.75/x
  3. Step 3: Cross multiply
    123,057.38x = 169,819.25 × 66,468.75
  4. Step 4: Simplify right side
    123,057.38x = 11,287,672,941.09
  5. Step 5: Solve for x
    x = 11,287,672,941.09/123,057.38
  6. Step 6: Final answer
    x = 91,726.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.