Home / 132,310.60-198,320.10-73,188.70

Finding the Fourth Proportional to 132,310.60, 198,320.10 and 73,188.70

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Solution

The fourth proportional to 132,310.60, 198,320.10 and 73,188.70 is: 109,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,310.60 : 198,320.10 = 73,188.70 : x
  2. Step 2: Convert to fraction form
    132,310.60/198,320.10 = 73,188.70/x
  3. Step 3: Cross multiply
    132,310.60x = 198,320.10 × 73,188.70
  4. Step 4: Simplify right side
    132,310.60x = 14,514,790,302.87
  5. Step 5: Solve for x
    x = 14,514,790,302.87/132,310.60
  6. Step 6: Final answer
    x = 109,702.40

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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.