Home / 126,034.20-173,920.63-78,286.59

Finding the Fourth Proportional to 126,034.20, 173,920.63 and 78,286.59

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Solution

The fourth proportional to 126,034.20, 173,920.63 and 78,286.59 is: 108,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,034.20 : 173,920.63 = 78,286.59 : x
  2. Step 2: Convert to fraction form
    126,034.20/173,920.63 = 78,286.59/x
  3. Step 3: Cross multiply
    126,034.20x = 173,920.63 × 78,286.59
  4. Step 4: Simplify right side
    126,034.20x = 13,615,653,053.35
  5. Step 5: Solve for x
    x = 13,615,653,053.35/126,034.20
  6. Step 6: Final answer
    x = 108,031.42

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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.