Home / 138,230.74-207,325.23-38,380.42

Finding the Fourth Proportional to 138,230.74, 207,325.23 and 38,380.42

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Solution

The fourth proportional to 138,230.74, 207,325.23 and 38,380.42 is: 57,564.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,230.74 : 207,325.23 = 38,380.42 : x
  2. Step 2: Convert to fraction form
    138,230.74/207,325.23 = 38,380.42/x
  3. Step 3: Cross multiply
    138,230.74x = 207,325.23 × 38,380.42
  4. Step 4: Simplify right side
    138,230.74x = 7,957,229,404.00
  5. Step 5: Solve for x
    x = 7,957,229,404.00/138,230.74
  6. Step 6: Final answer
    x = 57,564.83

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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.