Home / 126,820.91-175,044.30-73,138.16

Finding the Fourth Proportional to 126,820.91, 175,044.30 and 73,138.16

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Solution

The fourth proportional to 126,820.91, 175,044.30 and 73,138.16 is: 100,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,820.91 : 175,044.30 = 73,138.16 : x
  2. Step 2: Convert to fraction form
    126,820.91/175,044.30 = 73,138.16/x
  3. Step 3: Cross multiply
    126,820.91x = 175,044.30 × 73,138.16
  4. Step 4: Simplify right side
    126,820.91x = 12,802,418,020.49
  5. Step 5: Solve for x
    x = 12,802,418,020.49/126,820.91
  6. Step 6: Final answer
    x = 100,948.79

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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.