Home / 127,839.75-176,419.02-76,853.04

Finding the Fourth Proportional to 127,839.75, 176,419.02 and 76,853.04

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Solution

The fourth proportional to 127,839.75, 176,419.02 and 76,853.04 is: 106,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,839.75 : 176,419.02 = 76,853.04 : x
  2. Step 2: Convert to fraction form
    127,839.75/176,419.02 = 76,853.04/x
  3. Step 3: Cross multiply
    127,839.75x = 176,419.02 × 76,853.04
  4. Step 4: Simplify right side
    127,839.75x = 13,558,338,000.82
  5. Step 5: Solve for x
    x = 13,558,338,000.82/127,839.75
  6. Step 6: Final answer
    x = 106,057.29

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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.