Home / 126,920.71-175,057.43-91,147.47

Finding the Fourth Proportional to 126,920.71, 175,057.43 and 91,147.47

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Solution

The fourth proportional to 126,920.71, 175,057.43 and 91,147.47 is: 125,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,920.71 : 175,057.43 = 91,147.47 : x
  2. Step 2: Convert to fraction form
    126,920.71/175,057.43 = 91,147.47/x
  3. Step 3: Cross multiply
    126,920.71x = 175,057.43 × 91,147.47
  4. Step 4: Simplify right side
    126,920.71x = 15,956,041,849.20
  5. Step 5: Solve for x
    x = 15,956,041,849.20/126,920.71
  6. Step 6: Final answer
    x = 125,716.61

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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.