Home / 87,775.60-131,663.40-70,279.60

Finding the Fourth Proportional to 87,775.60, 131,663.40 and 70,279.60

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Solution

The fourth proportional to 87,775.60, 131,663.40 and 70,279.60 is: 105,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.60 : 131,663.40 = 70,279.60 : x
  2. Step 2: Convert to fraction form
    87,775.60/131,663.40 = 70,279.60/x
  3. Step 3: Cross multiply
    87,775.60x = 131,663.40 × 70,279.60
  4. Step 4: Simplify right side
    87,775.60x = 9,253,251,086.64
  5. Step 5: Solve for x
    x = 9,253,251,086.64/87,775.60
  6. Step 6: Final answer
    x = 105,419.40

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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.