Home / 127,940.11-176,556.97-76,982.55

Finding the Fourth Proportional to 127,940.11, 176,556.97 and 76,982.55

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Solution

The fourth proportional to 127,940.11, 176,556.97 and 76,982.55 is: 106,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,940.11 : 176,556.97 = 76,982.55 : x
  2. Step 2: Convert to fraction form
    127,940.11/176,556.97 = 76,982.55/x
  3. Step 3: Cross multiply
    127,940.11x = 176,556.97 × 76,982.55
  4. Step 4: Simplify right side
    127,940.11x = 13,591,805,765.12
  5. Step 5: Solve for x
    x = 13,591,805,765.12/127,940.11
  6. Step 6: Final answer
    x = 106,235.69

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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.