Home / 215,847.43-323,817.85-82,727.78

Finding the Fourth Proportional to 215,847.43, 323,817.85 and 82,727.78

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Solution

The fourth proportional to 215,847.43, 323,817.85 and 82,727.78 is: 124,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,847.43 : 323,817.85 = 82,727.78 : x
  2. Step 2: Convert to fraction form
    215,847.43/323,817.85 = 82,727.78/x
  3. Step 3: Cross multiply
    215,847.43x = 323,817.85 × 82,727.78
  4. Step 4: Simplify right side
    215,847.43x = 26,788,732,160.67
  5. Step 5: Solve for x
    x = 26,788,732,160.67/215,847.43
  6. Step 6: Final answer
    x = 124,109.57

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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.