Home / 149,744.20-206,645.43-81,760.97

Finding the Fourth Proportional to 149,744.20, 206,645.43 and 81,760.97

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Solution

The fourth proportional to 149,744.20, 206,645.43 and 81,760.97 is: 112,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,744.20 : 206,645.43 = 81,760.97 : x
  2. Step 2: Convert to fraction form
    149,744.20/206,645.43 = 81,760.97/x
  3. Step 3: Cross multiply
    149,744.20x = 206,645.43 × 81,760.97
  4. Step 4: Simplify right side
    149,744.20x = 16,895,530,802.87
  5. Step 5: Solve for x
    x = 16,895,530,802.87/149,744.20
  6. Step 6: Final answer
    x = 112,829.28

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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.