Home / 215,715.57-323,645.10-95,755.88

Finding the Fourth Proportional to 215,715.57, 323,645.10 and 95,755.88

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Solution

The fourth proportional to 215,715.57, 323,645.10 and 95,755.88 is: 143,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,715.57 : 323,645.10 = 95,755.88 : x
  2. Step 2: Convert to fraction form
    215,715.57/323,645.10 = 95,755.88/x
  3. Step 3: Cross multiply
    215,715.57x = 323,645.10 × 95,755.88
  4. Step 4: Simplify right side
    215,715.57x = 30,990,919,739.96
  5. Step 5: Solve for x
    x = 30,990,919,739.96/215,715.57
  6. Step 6: Final answer
    x = 143,665.66

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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.