Home / 141,963.92-195,909.80-81,538.48

Finding the Fourth Proportional to 141,963.92, 195,909.80 and 81,538.48

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Solution

The fourth proportional to 141,963.92, 195,909.80 and 81,538.48 is: 112,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,963.92 : 195,909.80 = 81,538.48 : x
  2. Step 2: Convert to fraction form
    141,963.92/195,909.80 = 81,538.48/x
  3. Step 3: Cross multiply
    141,963.92x = 195,909.80 × 81,538.48
  4. Step 4: Simplify right side
    141,963.92x = 15,974,187,309.10
  5. Step 5: Solve for x
    x = 15,974,187,309.10/141,963.92
  6. Step 6: Final answer
    x = 112,522.87

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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.