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Finding the Fourth Proportional to 123,150.90, 169,948.15 and 66,562.27

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Solution

The fourth proportional to 123,150.90, 169,948.15 and 66,562.27 is: 91,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,150.90 : 169,948.15 = 66,562.27 : x
  2. Step 2: Convert to fraction form
    123,150.90/169,948.15 = 66,562.27/x
  3. Step 3: Cross multiply
    123,150.90x = 169,948.15 × 66,562.27
  4. Step 4: Simplify right side
    123,150.90x = 11,312,134,960.69
  5. Step 5: Solve for x
    x = 11,312,134,960.69/123,150.90
  6. Step 6: Final answer
    x = 91,855.89

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1.5x scale

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.