Home / 87,926.30-131,889.45-84,815.90

Finding the Fourth Proportional to 87,926.30, 131,889.45 and 84,815.90

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Solution

The fourth proportional to 87,926.30, 131,889.45 and 84,815.90 is: 127,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.30 : 131,889.45 = 84,815.90 : x
  2. Step 2: Convert to fraction form
    87,926.30/131,889.45 = 84,815.90/x
  3. Step 3: Cross multiply
    87,926.30x = 131,889.45 × 84,815.90
  4. Step 4: Simplify right side
    87,926.30x = 11,186,322,402.26
  5. Step 5: Solve for x
    x = 11,186,322,402.26/87,926.30
  6. Step 6: Final answer
    x = 127,223.85

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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.