Home / 106,789.32-160,446.60-80,414.04

Finding the Fourth Proportional to 106,789.32, 160,446.60 and 80,414.04

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Solution

The fourth proportional to 106,789.32, 160,446.60 and 80,414.04 is: 120,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,789.32 : 160,446.60 = 80,414.04 : x
  2. Step 2: Convert to fraction form
    106,789.32/160,446.60 = 80,414.04/x
  3. Step 3: Cross multiply
    106,789.32x = 160,446.60 × 80,414.04
  4. Step 4: Simplify right side
    106,789.32x = 12,902,159,310.26
  5. Step 5: Solve for x
    x = 12,902,159,310.26/106,789.32
  6. Step 6: Final answer
    x = 120,818.82

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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.