Home / 199,084.78-274,736.94-109,660.78

Finding the Fourth Proportional to 199,084.78, 274,736.94 and 109,660.78

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Solution

The fourth proportional to 199,084.78, 274,736.94 and 109,660.78 is: 151,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,084.78 : 274,736.94 = 109,660.78 : x
  2. Step 2: Convert to fraction form
    199,084.78/274,736.94 = 109,660.78/x
  3. Step 3: Cross multiply
    199,084.78x = 274,736.94 × 109,660.78
  4. Step 4: Simplify right side
    199,084.78x = 30,127,867,135.21
  5. Step 5: Solve for x
    x = 30,127,867,135.21/199,084.78
  6. Step 6: Final answer
    x = 151,331.85

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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.