Home / 82,768.26-123,912.98-74,221.94

Finding the Fourth Proportional to 82,768.26, 123,912.98 and 74,221.94

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Solution

The fourth proportional to 82,768.26, 123,912.98 and 74,221.94 is: 111,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,768.26 : 123,912.98 = 74,221.94 : x
  2. Step 2: Convert to fraction form
    82,768.26/123,912.98 = 74,221.94/x
  3. Step 3: Cross multiply
    82,768.26x = 123,912.98 × 74,221.94
  4. Step 4: Simplify right side
    82,768.26x = 9,197,061,766.78
  5. Step 5: Solve for x
    x = 9,197,061,766.78/82,768.26
  6. Step 6: Final answer
    x = 111,118.22

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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.