Home / 127,860.88-176,375.76-80,031.19

Finding the Fourth Proportional to 127,860.88, 176,375.76 and 80,031.19

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Solution

The fourth proportional to 127,860.88, 176,375.76 and 80,031.19 is: 110,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.88 : 176,375.76 = 80,031.19 : x
  2. Step 2: Convert to fraction form
    127,860.88/176,375.76 = 80,031.19/x
  3. Step 3: Cross multiply
    127,860.88x = 176,375.76 × 80,031.19
  4. Step 4: Simplify right side
    127,860.88x = 14,115,561,959.95
  5. Step 5: Solve for x
    x = 14,115,561,959.95/127,860.88
  6. Step 6: Final answer
    x = 110,397.82

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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.