Home / 87,982.10-131,973.15-82,913.30

Finding the Fourth Proportional to 87,982.10, 131,973.15 and 82,913.30

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Solution

The fourth proportional to 87,982.10, 131,973.15 and 82,913.30 is: 124,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982.10 : 131,973.15 = 82,913.30 : x
  2. Step 2: Convert to fraction form
    87,982.10/131,973.15 = 82,913.30/x
  3. Step 3: Cross multiply
    87,982.10x = 131,973.15 × 82,913.30
  4. Step 4: Simplify right side
    87,982.10x = 10,942,329,377.90
  5. Step 5: Solve for x
    x = 10,942,329,377.90/87,982.10
  6. Step 6: Final answer
    x = 124,369.95

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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.