Home / 126,660.52-174,800.10-72,959.72

Finding the Fourth Proportional to 126,660.52, 174,800.10 and 72,959.72

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Solution

The fourth proportional to 126,660.52, 174,800.10 and 72,959.72 is: 100,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,660.52 : 174,800.10 = 72,959.72 : x
  2. Step 2: Convert to fraction form
    126,660.52/174,800.10 = 72,959.72/x
  3. Step 3: Cross multiply
    126,660.52x = 174,800.10 × 72,959.72
  4. Step 4: Simplify right side
    126,660.52x = 12,753,366,351.97
  5. Step 5: Solve for x
    x = 12,753,366,351.97/126,660.52
  6. Step 6: Final answer
    x = 100,689.36

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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.