Home / 87,832.13-131,610.13-67,890.42

Finding the Fourth Proportional to 87,832.13, 131,610.13 and 67,890.42

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Solution

The fourth proportional to 87,832.13, 131,610.13 and 67,890.42 is: 101,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.13 : 131,610.13 = 67,890.42 : x
  2. Step 2: Convert to fraction form
    87,832.13/131,610.13 = 67,890.42/x
  3. Step 3: Cross multiply
    87,832.13x = 131,610.13 × 67,890.42
  4. Step 4: Simplify right side
    87,832.13x = 8,935,066,832.23
  5. Step 5: Solve for x
    x = 8,935,066,832.23/87,832.13
  6. Step 6: Final answer
    x = 101,728.92

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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.