Home / 149,822.97-206,753.61-81,839.13

Finding the Fourth Proportional to 149,822.97, 206,753.61 and 81,839.13

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Solution

The fourth proportional to 149,822.97, 206,753.61 and 81,839.13 is: 112,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,822.97 : 206,753.61 = 81,839.13 : x
  2. Step 2: Convert to fraction form
    149,822.97/206,753.61 = 81,839.13/x
  3. Step 3: Cross multiply
    149,822.97x = 206,753.61 × 81,839.13
  4. Step 4: Simplify right side
    149,822.97x = 16,920,535,566.76
  5. Step 5: Solve for x
    x = 16,920,535,566.76/149,822.97
  6. Step 6: Final answer
    x = 112,936.86

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1.5x scale

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.