Home / 268,986.30-403,537.05-82,016.70

Finding the Fourth Proportional to 268,986.30, 403,537.05 and 82,016.70

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Solution

The fourth proportional to 268,986.30, 403,537.05 and 82,016.70 is: 123,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,986.30 : 403,537.05 = 82,016.70 : x
  2. Step 2: Convert to fraction form
    268,986.30/403,537.05 = 82,016.70/x
  3. Step 3: Cross multiply
    268,986.30x = 403,537.05 × 82,016.70
  4. Step 4: Simplify right side
    268,986.30x = 33,096,777,168.74
  5. Step 5: Solve for x
    x = 33,096,777,168.74/268,986.30
  6. Step 6: Final answer
    x = 123,042.61

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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.