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Finding the Fourth Proportional to 123,429.60, 185,115.24 and 53,270.64

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Solution

The fourth proportional to 123,429.60, 185,115.24 and 53,270.64 is: 79,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.60 : 185,115.24 = 53,270.64 : x
  2. Step 2: Convert to fraction form
    123,429.60/185,115.24 = 53,270.64/x
  3. Step 3: Cross multiply
    123,429.60x = 185,115.24 × 53,270.64
  4. Step 4: Simplify right side
    123,429.60x = 9,861,207,308.55
  5. Step 5: Solve for x
    x = 9,861,207,308.55/123,429.60
  6. Step 6: Final answer
    x = 79,893.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.