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Finding the Fourth Proportional to 138,773.57, 208,167.92 and 43,996.90

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Solution

The fourth proportional to 138,773.57, 208,167.92 and 43,996.90 is: 65,997.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,773.57 : 208,167.92 = 43,996.90 : x
  2. Step 2: Convert to fraction form
    138,773.57/208,167.92 = 43,996.90/x
  3. Step 3: Cross multiply
    138,773.57x = 208,167.92 × 43,996.90
  4. Step 4: Simplify right side
    138,773.57x = 9,158,742,790.27
  5. Step 5: Solve for x
    x = 9,158,742,790.27/138,773.57
  6. Step 6: Final answer
    x = 65,997.75

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1.5x scale

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.