Home / 132,502.20-198,494.10-90,511.80

Finding the Fourth Proportional to 132,502.20, 198,494.10 and 90,511.80

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Solution

The fourth proportional to 132,502.20, 198,494.10 and 90,511.80 is: 135,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,502.20 : 198,494.10 = 90,511.80 : x
  2. Step 2: Convert to fraction form
    132,502.20/198,494.10 = 90,511.80/x
  3. Step 3: Cross multiply
    132,502.20x = 198,494.10 × 90,511.80
  4. Step 4: Simplify right side
    132,502.20x = 17,966,058,280.38
  5. Step 5: Solve for x
    x = 17,966,058,280.38/132,502.20
  6. Step 6: Final answer
    x = 135,590.64

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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.