Home / 132,437.10-198,327.60-84,979.20

Finding the Fourth Proportional to 132,437.10, 198,327.60 and 84,979.20

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Solution

The fourth proportional to 132,437.10, 198,327.60 and 84,979.20 is: 127,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,437.10 : 198,327.60 = 84,979.20 : x
  2. Step 2: Convert to fraction form
    132,437.10/198,327.60 = 84,979.20/x
  3. Step 3: Cross multiply
    132,437.10x = 198,327.60 × 84,979.20
  4. Step 4: Simplify right side
    132,437.10x = 16,853,720,785.92
  5. Step 5: Solve for x
    x = 16,853,720,785.92/132,437.10
  6. Step 6: Final answer
    x = 127,258.30

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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.