Home / 87,464.40-131,196.60-80,206.80

Finding the Fourth Proportional to 87,464.40, 131,196.60 and 80,206.80

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Solution

The fourth proportional to 87,464.40, 131,196.60 and 80,206.80 is: 120,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464.40 : 131,196.60 = 80,206.80 : x
  2. Step 2: Convert to fraction form
    87,464.40/131,196.60 = 80,206.80/x
  3. Step 3: Cross multiply
    87,464.40x = 131,196.60 × 80,206.80
  4. Step 4: Simplify right side
    87,464.40x = 10,522,859,456.88
  5. Step 5: Solve for x
    x = 10,522,859,456.88/87,464.40
  6. Step 6: Final answer
    x = 120,310.20

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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.