Home / 149,744.28-206,655.49-81,767.59

Finding the Fourth Proportional to 149,744.28, 206,655.49 and 81,767.59

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Solution

The fourth proportional to 149,744.28, 206,655.49 and 81,767.59 is: 112,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,744.28 : 206,655.49 = 81,767.59 : x
  2. Step 2: Convert to fraction form
    149,744.28/206,655.49 = 81,767.59/x
  3. Step 3: Cross multiply
    149,744.28x = 206,655.49 × 81,767.59
  4. Step 4: Simplify right side
    149,744.28x = 16,897,720,963.14
  5. Step 5: Solve for x
    x = 16,897,720,963.14/149,744.28
  6. Step 6: Final answer
    x = 112,843.85

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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.