Home / 138,514.26-207,755.79-37,319.78

Finding the Fourth Proportional to 138,514.26, 207,755.79 and 37,319.78

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Solution

The fourth proportional to 138,514.26, 207,755.79 and 37,319.78 is: 55,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,514.26 : 207,755.79 = 37,319.78 : x
  2. Step 2: Convert to fraction form
    138,514.26/207,755.79 = 37,319.78/x
  3. Step 3: Cross multiply
    138,514.26x = 207,755.79 × 37,319.78
  4. Step 4: Simplify right side
    138,514.26x = 7,753,399,337.75
  5. Step 5: Solve for x
    x = 7,753,399,337.75/138,514.26
  6. Step 6: Final answer
    x = 55,975.46

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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.