Home / 198,895.64-274,504.92-111,690.54

Finding the Fourth Proportional to 198,895.64, 274,504.92 and 111,690.54

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Solution

The fourth proportional to 198,895.64, 274,504.92 and 111,690.54 is: 154,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,895.64 : 274,504.92 = 111,690.54 : x
  2. Step 2: Convert to fraction form
    198,895.64/274,504.92 = 111,690.54/x
  3. Step 3: Cross multiply
    198,895.64x = 274,504.92 × 111,690.54
  4. Step 4: Simplify right side
    198,895.64x = 30,659,602,747.46
  5. Step 5: Solve for x
    x = 30,659,602,747.46/198,895.64
  6. Step 6: Final answer
    x = 154,149.19

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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.