Home / 87,516.60-131,242.50-68,832.96

Finding the Fourth Proportional to 87,516.60, 131,242.50 and 68,832.96

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Solution

The fourth proportional to 87,516.60, 131,242.50 and 68,832.96 is: 103,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,516.60 : 131,242.50 = 68,832.96 : x
  2. Step 2: Convert to fraction form
    87,516.60/131,242.50 = 68,832.96/x
  3. Step 3: Cross multiply
    87,516.60x = 131,242.50 × 68,832.96
  4. Step 4: Simplify right side
    87,516.60x = 9,033,809,752.80
  5. Step 5: Solve for x
    x = 9,033,809,752.80/87,516.60
  6. Step 6: Final answer
    x = 103,223.96

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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.