Home / 141,540.26-195,330.92-81,122.56

Finding the Fourth Proportional to 141,540.26, 195,330.92 and 81,122.56

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Solution

The fourth proportional to 141,540.26, 195,330.92 and 81,122.56 is: 111,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,540.26 : 195,330.92 = 81,122.56 : x
  2. Step 2: Convert to fraction form
    141,540.26/195,330.92 = 81,122.56/x
  3. Step 3: Cross multiply
    141,540.26x = 195,330.92 × 81,122.56
  4. Step 4: Simplify right side
    141,540.26x = 15,845,743,383.62
  5. Step 5: Solve for x
    x = 15,845,743,383.62/141,540.26
  6. Step 6: Final answer
    x = 111,952.20

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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.