Home / 188,122.96-281,961.96-82,721.44

Finding the Fourth Proportional to 188,122.96, 281,961.96 and 82,721.44

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Solution

The fourth proportional to 188,122.96, 281,961.96 and 82,721.44 is: 123,984.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,122.96 : 281,961.96 = 82,721.44 : x
  2. Step 2: Convert to fraction form
    188,122.96/281,961.96 = 82,721.44/x
  3. Step 3: Cross multiply
    188,122.96x = 281,961.96 × 82,721.44
  4. Step 4: Simplify right side
    188,122.96x = 23,324,299,356.42
  5. Step 5: Solve for x
    x = 23,324,299,356.42/188,122.96
  6. Step 6: Final answer
    x = 123,984.33

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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.