Home / 137,721.90-206,874.45-132,764.70

Finding the Fourth Proportional to 137,721.90, 206,874.45 and 132,764.70

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Solution

The fourth proportional to 137,721.90, 206,874.45 and 132,764.70 is: 199,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,721.90 : 206,874.45 = 132,764.70 : x
  2. Step 2: Convert to fraction form
    137,721.90/206,874.45 = 132,764.70/x
  3. Step 3: Cross multiply
    137,721.90x = 206,874.45 × 132,764.70
  4. Step 4: Simplify right side
    137,721.90x = 27,465,624,291.92
  5. Step 5: Solve for x
    x = 27,465,624,291.92/137,721.90
  6. Step 6: Final answer
    x = 199,428.15

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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.