Home / 198,961.82-274,564.59-108,318.56

Finding the Fourth Proportional to 198,961.82, 274,564.59 and 108,318.56

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Solution

The fourth proportional to 198,961.82, 274,564.59 and 108,318.56 is: 149,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.82 : 274,564.59 = 108,318.56 : x
  2. Step 2: Convert to fraction form
    198,961.82/274,564.59 = 108,318.56/x
  3. Step 3: Cross multiply
    198,961.82x = 274,564.59 × 108,318.56
  4. Step 4: Simplify right side
    198,961.82x = 29,740,441,015.79
  5. Step 5: Solve for x
    x = 29,740,441,015.79/198,961.82
  6. Step 6: Final answer
    x = 149,478.13

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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.