Home / 138,452.22-207,613.33-82,299.78

Finding the Fourth Proportional to 138,452.22, 207,613.33 and 82,299.78

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Solution

The fourth proportional to 138,452.22, 207,613.33 and 82,299.78 is: 123,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452.22 : 207,613.33 = 82,299.78 : x
  2. Step 2: Convert to fraction form
    138,452.22/207,613.33 = 82,299.78/x
  3. Step 3: Cross multiply
    138,452.22x = 207,613.33 × 82,299.78
  4. Step 4: Simplify right side
    138,452.22x = 17,086,531,178.32
  5. Step 5: Solve for x
    x = 17,086,531,178.32/138,452.22
  6. Step 6: Final answer
    x = 123,411.03

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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.