Home / 127,920.20-176,396.31-89,203.04

Finding the Fourth Proportional to 127,920.20, 176,396.31 and 89,203.04

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Solution

The fourth proportional to 127,920.20, 176,396.31 and 89,203.04 is: 123,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,920.20 : 176,396.31 = 89,203.04 : x
  2. Step 2: Convert to fraction form
    127,920.20/176,396.31 = 89,203.04/x
  3. Step 3: Cross multiply
    127,920.20x = 176,396.31 × 89,203.04
  4. Step 4: Simplify right side
    127,920.20x = 15,735,086,876.29
  5. Step 5: Solve for x
    x = 15,735,086,876.29/127,920.20
  6. Step 6: Final answer
    x = 123,007.06

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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.