Home / 87,403.48-131,006.10-76,853.14

Finding the Fourth Proportional to 87,403.48, 131,006.10 and 76,853.14

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Solution

The fourth proportional to 87,403.48, 131,006.10 and 76,853.14 is: 115,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403.48 : 131,006.10 = 76,853.14 : x
  2. Step 2: Convert to fraction form
    87,403.48/131,006.10 = 76,853.14/x
  3. Step 3: Cross multiply
    87,403.48x = 131,006.10 × 76,853.14
  4. Step 4: Simplify right side
    87,403.48x = 10,068,230,144.15
  5. Step 5: Solve for x
    x = 10,068,230,144.15/87,403.48
  6. Step 6: Final answer
    x = 115,192.55

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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.