Home / 87,198.12-120,331.14-50,906.52

Finding the Fourth Proportional to 87,198.12, 120,331.14 and 50,906.52

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Solution

The fourth proportional to 87,198.12, 120,331.14 and 50,906.52 is: 70,249.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198.12 : 120,331.14 = 50,906.52 : x
  2. Step 2: Convert to fraction form
    87,198.12/120,331.14 = 50,906.52/x
  3. Step 3: Cross multiply
    87,198.12x = 120,331.14 × 50,906.52
  4. Step 4: Simplify right side
    87,198.12x = 6,125,639,585.03
  5. Step 5: Solve for x
    x = 6,125,639,585.03/87,198.12
  6. Step 6: Final answer
    x = 70,249.67

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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.