Home / 126,872.64-175,164.92-79,196.04

Finding the Fourth Proportional to 126,872.64, 175,164.92 and 79,196.04

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Solution

The fourth proportional to 126,872.64, 175,164.92 and 79,196.04 is: 109,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.64 : 175,164.92 = 79,196.04 : x
  2. Step 2: Convert to fraction form
    126,872.64/175,164.92 = 79,196.04/x
  3. Step 3: Cross multiply
    126,872.64x = 175,164.92 × 79,196.04
  4. Step 4: Simplify right side
    126,872.64x = 13,872,368,010.92
  5. Step 5: Solve for x
    x = 13,872,368,010.92/126,872.64
  6. Step 6: Final answer
    x = 109,340.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.