Home / 198,921.70-274,511.67-108,277.38

Finding the Fourth Proportional to 198,921.70, 274,511.67 and 108,277.38

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Solution

The fourth proportional to 198,921.70, 274,511.67 and 108,277.38 is: 149,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.70 : 274,511.67 = 108,277.38 : x
  2. Step 2: Convert to fraction form
    198,921.70/274,511.67 = 108,277.38/x
  3. Step 3: Cross multiply
    198,921.70x = 274,511.67 × 108,277.38
  4. Step 4: Simplify right side
    198,921.70x = 29,723,404,407.02
  5. Step 5: Solve for x
    x = 29,723,404,407.02/198,921.70
  6. Step 6: Final answer
    x = 149,422.63

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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.