Home / 143,593.13-198,177.09-82,363.21

Finding the Fourth Proportional to 143,593.13, 198,177.09 and 82,363.21

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Solution

The fourth proportional to 143,593.13, 198,177.09 and 82,363.21 is: 113,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,593.13 : 198,177.09 = 82,363.21 : x
  2. Step 2: Convert to fraction form
    143,593.13/198,177.09 = 82,363.21/x
  3. Step 3: Cross multiply
    143,593.13x = 198,177.09 × 82,363.21
  4. Step 4: Simplify right side
    143,593.13x = 16,322,501,280.86
  5. Step 5: Solve for x
    x = 16,322,501,280.86/143,593.13
  6. Step 6: Final answer
    x = 113,671.88

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1.5x scale

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.