Home / 165,401.68-247,990.22-84,149

Finding the Fourth Proportional to 165,401.68, 247,990.22 and 84,149

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Solution

The fourth proportional to 165,401.68, 247,990.22 and 84,149 is: 126,166.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,401.68 : 247,990.22 = 84,149 : x
  2. Step 2: Convert to fraction form
    165,401.68/247,990.22 = 84,149/x
  3. Step 3: Cross multiply
    165,401.68x = 247,990.22 × 84,149
  4. Step 4: Simplify right side
    165,401.68x = 20,868,129,022.78
  5. Step 5: Solve for x
    x = 20,868,129,022.78/165,401.68
  6. Step 6: Final answer
    x = 126,166.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.