Home / 149,743.20-206,644.05-81,759.97

Finding the Fourth Proportional to 149,743.20, 206,644.05 and 81,759.97

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Solution

The fourth proportional to 149,743.20, 206,644.05 and 81,759.97 is: 112,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,743.20 : 206,644.05 = 81,759.97 : x
  2. Step 2: Convert to fraction form
    149,743.20/206,644.05 = 81,759.97/x
  3. Step 3: Cross multiply
    149,743.20x = 206,644.05 × 81,759.97
  4. Step 4: Simplify right side
    149,743.20x = 16,895,210,731.21
  5. Step 5: Solve for x
    x = 16,895,210,731.21/149,743.20
  6. Step 6: Final answer
    x = 112,827.90

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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.