Home / 198,725.76-274,242.72-108,082.56

Finding the Fourth Proportional to 198,725.76, 274,242.72 and 108,082.56

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Solution

The fourth proportional to 198,725.76, 274,242.72 and 108,082.56 is: 149,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,725.76 : 274,242.72 = 108,082.56 : x
  2. Step 2: Convert to fraction form
    198,725.76/274,242.72 = 108,082.56/x
  3. Step 3: Cross multiply
    198,725.76x = 274,242.72 × 108,082.56
  4. Step 4: Simplify right side
    198,725.76x = 29,640,855,238.96
  5. Step 5: Solve for x
    x = 29,640,855,238.96/198,725.76
  6. Step 6: Final answer
    x = 149,154.57

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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.