Home / 127,839.75-176,234.40-89,480.58

Finding the Fourth Proportional to 127,839.75, 176,234.40 and 89,480.58

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Solution

The fourth proportional to 127,839.75, 176,234.40 and 89,480.58 is: 123,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,839.75 : 176,234.40 = 89,480.58 : x
  2. Step 2: Convert to fraction form
    127,839.75/176,234.40 = 89,480.58/x
  3. Step 3: Cross multiply
    127,839.75x = 176,234.40 × 89,480.58
  4. Step 4: Simplify right side
    127,839.75x = 15,769,556,327.95
  5. Step 5: Solve for x
    x = 15,769,556,327.95/127,839.75
  6. Step 6: Final answer
    x = 123,354.09

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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.