Home / 149,744.46-206,645.78-81,761.22

Finding the Fourth Proportional to 149,744.46, 206,645.78 and 81,761.22

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Solution

The fourth proportional to 149,744.46, 206,645.78 and 81,761.22 is: 112,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,744.46 : 206,645.78 = 81,761.22 : x
  2. Step 2: Convert to fraction form
    149,744.46/206,645.78 = 81,761.22/x
  3. Step 3: Cross multiply
    149,744.46x = 206,645.78 × 81,761.22
  4. Step 4: Simplify right side
    149,744.46x = 16,895,609,638.62
  5. Step 5: Solve for x
    x = 16,895,609,638.62/149,744.46
  6. Step 6: Final answer
    x = 112,829.61

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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.