Home / 218,103.14-327,155.22-66,301.61

Finding the Fourth Proportional to 218,103.14, 327,155.22 and 66,301.61

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Solution

The fourth proportional to 218,103.14, 327,155.22 and 66,301.61 is: 99,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,103.14 : 327,155.22 = 66,301.61 : x
  2. Step 2: Convert to fraction form
    218,103.14/327,155.22 = 66,301.61/x
  3. Step 3: Cross multiply
    218,103.14x = 327,155.22 × 66,301.61
  4. Step 4: Simplify right side
    218,103.14x = 21,690,916,170.13
  5. Step 5: Solve for x
    x = 21,690,916,170.13/218,103.14
  6. Step 6: Final answer
    x = 99,452.56

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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.