Home / 170,218.20-255,217.68-81,469.56

Finding the Fourth Proportional to 170,218.20, 255,217.68 and 81,469.56

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Solution

The fourth proportional to 170,218.20, 255,217.68 and 81,469.56 is: 122,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,218.20 : 255,217.68 = 81,469.56 : x
  2. Step 2: Convert to fraction form
    170,218.20/255,217.68 = 81,469.56/x
  3. Step 3: Cross multiply
    170,218.20x = 255,217.68 × 81,469.56
  4. Step 4: Simplify right side
    170,218.20x = 20,792,472,093.82
  5. Step 5: Solve for x
    x = 20,792,472,093.82/170,218.20
  6. Step 6: Final answer
    x = 122,151.87

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1.5x scale

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.