Home / 189,400.82-261,385.97-108,860.49

Finding the Fourth Proportional to 189,400.82, 261,385.97 and 108,860.49

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Solution

The fourth proportional to 189,400.82, 261,385.97 and 108,860.49 is: 150,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,400.82 : 261,385.97 = 108,860.49 : x
  2. Step 2: Convert to fraction form
    189,400.82/261,385.97 = 108,860.49/x
  3. Step 3: Cross multiply
    189,400.82x = 261,385.97 × 108,860.49
  4. Step 4: Simplify right side
    189,400.82x = 28,454,604,229.02
  5. Step 5: Solve for x
    x = 28,454,604,229.02/189,400.82
  6. Step 6: Final answer
    x = 150,234.86

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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.