Home / 126,750.97-175,034.91-81,507.56

Finding the Fourth Proportional to 126,750.97, 175,034.91 and 81,507.56

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Solution

The fourth proportional to 126,750.97, 175,034.91 and 81,507.56 is: 112,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,750.97 : 175,034.91 = 81,507.56 : x
  2. Step 2: Convert to fraction form
    126,750.97/175,034.91 = 81,507.56/x
  3. Step 3: Cross multiply
    126,750.97x = 175,034.91 × 81,507.56
  4. Step 4: Simplify right side
    126,750.97x = 14,266,668,275.09
  5. Step 5: Solve for x
    x = 14,266,668,275.09/126,750.97
  6. Step 6: Final answer
    x = 112,556.68

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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.