Home / 126,731.52-174,882.54-72,275.69

Finding the Fourth Proportional to 126,731.52, 174,882.54 and 72,275.69

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Solution

The fourth proportional to 126,731.52, 174,882.54 and 72,275.69 is: 99,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,731.52 : 174,882.54 = 72,275.69 : x
  2. Step 2: Convert to fraction form
    126,731.52/174,882.54 = 72,275.69/x
  3. Step 3: Cross multiply
    126,731.52x = 174,882.54 × 72,275.69
  4. Step 4: Simplify right side
    126,731.52x = 12,639,755,373.04
  5. Step 5: Solve for x
    x = 12,639,755,373.04/126,731.52
  6. Step 6: Final answer
    x = 99,736.48

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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.