Home / 198,581.45-274,047.76-107,943.54

Finding the Fourth Proportional to 198,581.45, 274,047.76 and 107,943.54

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Solution

The fourth proportional to 198,581.45, 274,047.76 and 107,943.54 is: 148,964.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,581.45 : 274,047.76 = 107,943.54 : x
  2. Step 2: Convert to fraction form
    198,581.45/274,047.76 = 107,943.54/x
  3. Step 3: Cross multiply
    198,581.45x = 274,047.76 × 107,943.54
  4. Step 4: Simplify right side
    198,581.45x = 29,581,683,843.54
  5. Step 5: Solve for x
    x = 29,581,683,843.54/198,581.45
  6. Step 6: Final answer
    x = 148,964.99

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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.