Home / 126,951.08-175,112.82-81,687.87

Finding the Fourth Proportional to 126,951.08, 175,112.82 and 81,687.87

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Solution

The fourth proportional to 126,951.08, 175,112.82 and 81,687.87 is: 112,678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,951.08 : 175,112.82 = 81,687.87 : x
  2. Step 2: Convert to fraction form
    126,951.08/175,112.82 = 81,687.87/x
  3. Step 3: Cross multiply
    126,951.08x = 175,112.82 × 81,687.87
  4. Step 4: Simplify right side
    126,951.08x = 14,304,593,275.49
  5. Step 5: Solve for x
    x = 14,304,593,275.49/126,951.08
  6. Step 6: Final answer
    x = 112,678.00

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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.