Home / 126,952.20-175,114.44-81,689.04

Finding the Fourth Proportional to 126,952.20, 175,114.44 and 81,689.04

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Solution

The fourth proportional to 126,952.20, 175,114.44 and 81,689.04 is: 112,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,952.20 : 175,114.44 = 81,689.04 : x
  2. Step 2: Convert to fraction form
    126,952.20/175,114.44 = 81,689.04/x
  3. Step 3: Cross multiply
    126,952.20x = 175,114.44 × 81,689.04
  4. Step 4: Simplify right side
    126,952.20x = 14,304,930,493.74
  5. Step 5: Solve for x
    x = 14,304,930,493.74/126,952.20
  6. Step 6: Final answer
    x = 112,679.66

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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.