Home / 138,456.95-207,682.38-38,614.46

Finding the Fourth Proportional to 138,456.95, 207,682.38 and 38,614.46

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Solution

The fourth proportional to 138,456.95, 207,682.38 and 38,614.46 is: 57,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,456.95 : 207,682.38 = 38,614.46 : x
  2. Step 2: Convert to fraction form
    138,456.95/207,682.38 = 38,614.46/x
  3. Step 3: Cross multiply
    138,456.95x = 207,682.38 × 38,614.46
  4. Step 4: Simplify right side
    138,456.95x = 8,019,541,916.80
  5. Step 5: Solve for x
    x = 8,019,541,916.80/138,456.95
  6. Step 6: Final answer
    x = 57,920.84

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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.