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Finding the Fourth Proportional to 126,134.88, 174,062.88 and 69,545.28

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Solution

The fourth proportional to 126,134.88, 174,062.88 and 69,545.28 is: 95,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,134.88 : 174,062.88 = 69,545.28 : x
  2. Step 2: Convert to fraction form
    126,134.88/174,062.88 = 69,545.28/x
  3. Step 3: Cross multiply
    126,134.88x = 174,062.88 × 69,545.28
  4. Step 4: Simplify right side
    126,134.88x = 12,105,251,727.21
  5. Step 5: Solve for x
    x = 12,105,251,727.21/126,134.88
  6. Step 6: Final answer
    x = 95,970.69

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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.