Home / 126,869.29-175,080.29-71,678.86

Finding the Fourth Proportional to 126,869.29, 175,080.29 and 71,678.86

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Solution

The fourth proportional to 126,869.29, 175,080.29 and 71,678.86 is: 98,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,869.29 : 175,080.29 = 71,678.86 : x
  2. Step 2: Convert to fraction form
    126,869.29/175,080.29 = 71,678.86/x
  3. Step 3: Cross multiply
    126,869.29x = 175,080.29 × 71,678.86
  4. Step 4: Simplify right side
    126,869.29x = 12,549,554,799.57
  5. Step 5: Solve for x
    x = 12,549,554,799.57/126,869.29
  6. Step 6: Final answer
    x = 98,917.20

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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.