Home / 203,721.56-281,122.12-123,193.49

Finding the Fourth Proportional to 203,721.56, 281,122.12 and 123,193.49

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Solution

The fourth proportional to 203,721.56, 281,122.12 and 123,193.49 is: 169,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,721.56 : 281,122.12 = 123,193.49 : x
  2. Step 2: Convert to fraction form
    203,721.56/281,122.12 = 123,193.49/x
  3. Step 3: Cross multiply
    203,721.56x = 281,122.12 × 123,193.49
  4. Step 4: Simplify right side
    203,721.56x = 34,632,415,079.00
  5. Step 5: Solve for x
    x = 34,632,415,079.00/203,721.56
  6. Step 6: Final answer
    x = 169,998.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.