Home / 203,821.13-305,398.73-123,883.55

Finding the Fourth Proportional to 203,821.13, 305,398.73 and 123,883.55

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Solution

The fourth proportional to 203,821.13, 305,398.73 and 123,883.55 is: 185,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,821.13 : 305,398.73 = 123,883.55 : x
  2. Step 2: Convert to fraction form
    203,821.13/305,398.73 = 123,883.55/x
  3. Step 3: Cross multiply
    203,821.13x = 305,398.73 × 123,883.55
  4. Step 4: Simplify right side
    203,821.13x = 37,833,876,691.48
  5. Step 5: Solve for x
    x = 37,833,876,691.48/203,821.13
  6. Step 6: Final answer
    x = 185,622.94

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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.