Home / 138,877.20-207,096.30-137,614.20

Finding the Fourth Proportional to 138,877.20, 207,096.30 and 137,614.20

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Solution

The fourth proportional to 138,877.20, 207,096.30 and 137,614.20 is: 205,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.20 : 207,096.30 = 137,614.20 : x
  2. Step 2: Convert to fraction form
    138,877.20/207,096.30 = 137,614.20/x
  3. Step 3: Cross multiply
    138,877.20x = 207,096.30 × 137,614.20
  4. Step 4: Simplify right side
    138,877.20x = 28,499,391,647.46
  5. Step 5: Solve for x
    x = 28,499,391,647.46/138,877.20
  6. Step 6: Final answer
    x = 205,212.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.