Home / 87,680.53-131,519.58-82,076.95

Finding the Fourth Proportional to 87,680.53, 131,519.58 and 82,076.95

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Solution

The fourth proportional to 87,680.53, 131,519.58 and 82,076.95 is: 123,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.53 : 131,519.58 = 82,076.95 : x
  2. Step 2: Convert to fraction form
    87,680.53/131,519.58 = 82,076.95/x
  3. Step 3: Cross multiply
    87,680.53x = 131,519.58 × 82,076.95
  4. Step 4: Simplify right side
    87,680.53x = 10,794,725,991.68
  5. Step 5: Solve for x
    x = 10,794,725,991.68/87,680.53
  6. Step 6: Final answer
    x = 123,114.29

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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.