Home / 220,743.96-331,165.30-80,502.59

Finding the Fourth Proportional to 220,743.96, 331,165.30 and 80,502.59

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Solution

The fourth proportional to 220,743.96, 331,165.30 and 80,502.59 is: 120,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,743.96 : 331,165.30 = 80,502.59 : x
  2. Step 2: Convert to fraction form
    220,743.96/331,165.30 = 80,502.59/x
  3. Step 3: Cross multiply
    220,743.96x = 331,165.30 × 80,502.59
  4. Step 4: Simplify right side
    220,743.96x = 26,659,663,433.86
  5. Step 5: Solve for x
    x = 26,659,663,433.86/220,743.96
  6. Step 6: Final answer
    x = 120,771.88

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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.