Home / 215,842.13-323,578.55-82,817.85

Finding the Fourth Proportional to 215,842.13, 323,578.55 and 82,817.85

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Solution

The fourth proportional to 215,842.13, 323,578.55 and 82,817.85 is: 124,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,842.13 : 323,578.55 = 82,817.85 : x
  2. Step 2: Convert to fraction form
    215,842.13/323,578.55 = 82,817.85/x
  3. Step 3: Cross multiply
    215,842.13x = 323,578.55 × 82,817.85
  4. Step 4: Simplify right side
    215,842.13x = 26,798,079,403.03
  5. Step 5: Solve for x
    x = 26,798,079,403.03/215,842.13
  6. Step 6: Final answer
    x = 124,155.93

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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.