Home / 87,996.60-131,703.30-80,998.20

Finding the Fourth Proportional to 87,996.60, 131,703.30 and 80,998.20

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Solution

The fourth proportional to 87,996.60, 131,703.30 and 80,998.20 is: 121,228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,996.60 : 131,703.30 = 80,998.20 : x
  2. Step 2: Convert to fraction form
    87,996.60/131,703.30 = 80,998.20/x
  3. Step 3: Cross multiply
    87,996.60x = 131,703.30 × 80,998.20
  4. Step 4: Simplify right side
    87,996.60x = 10,667,730,234.06
  5. Step 5: Solve for x
    x = 10,667,730,234.06/87,996.60
  6. Step 6: Final answer
    x = 121,228.89

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1.5x scale

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.