Home / 215,118.88-322,234.32-126,101.92

Finding the Fourth Proportional to 215,118.88, 322,234.32 and 126,101.92

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Solution

The fourth proportional to 215,118.88, 322,234.32 and 126,101.92 is: 188,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,118.88 : 322,234.32 = 126,101.92 : x
  2. Step 2: Convert to fraction form
    215,118.88/322,234.32 = 126,101.92/x
  3. Step 3: Cross multiply
    215,118.88x = 322,234.32 × 126,101.92
  4. Step 4: Simplify right side
    215,118.88x = 40,634,366,441.89
  5. Step 5: Solve for x
    x = 40,634,366,441.89/215,118.88
  6. Step 6: Final answer
    x = 188,892.61

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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.