Home / 131,654.40-197,481.60-87,331.20

Finding the Fourth Proportional to 131,654.40, 197,481.60 and 87,331.20

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Solution

The fourth proportional to 131,654.40, 197,481.60 and 87,331.20 is: 130,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.40 : 197,481.60 = 87,331.20 : x
  2. Step 2: Convert to fraction form
    131,654.40/197,481.60 = 87,331.20/x
  3. Step 3: Cross multiply
    131,654.40x = 197,481.60 × 87,331.20
  4. Step 4: Simplify right side
    131,654.40x = 17,246,305,105.92
  5. Step 5: Solve for x
    x = 17,246,305,105.92/131,654.40
  6. Step 6: Final answer
    x = 130,996.80

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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.