Home / 137,910.13-206,898.54-47,939.86

Finding the Fourth Proportional to 137,910.13, 206,898.54 and 47,939.86

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Solution

The fourth proportional to 137,910.13, 206,898.54 and 47,939.86 is: 71,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,910.13 : 206,898.54 = 47,939.86 : x
  2. Step 2: Convert to fraction form
    137,910.13/206,898.54 = 47,939.86/x
  3. Step 3: Cross multiply
    137,910.13x = 206,898.54 × 47,939.86
  4. Step 4: Simplify right side
    137,910.13x = 9,918,687,041.80
  5. Step 5: Solve for x
    x = 9,918,687,041.80/137,910.13
  6. Step 6: Final answer
    x = 71,921.38

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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.