Home / 198,821.79-274,381.22-113,955.03

Finding the Fourth Proportional to 198,821.79, 274,381.22 and 113,955.03

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Solution

The fourth proportional to 198,821.79, 274,381.22 and 113,955.03 is: 157,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,821.79 : 274,381.22 = 113,955.03 : x
  2. Step 2: Convert to fraction form
    198,821.79/274,381.22 = 113,955.03/x
  3. Step 3: Cross multiply
    198,821.79x = 274,381.22 × 113,955.03
  4. Step 4: Simplify right side
    198,821.79x = 31,267,119,586.76
  5. Step 5: Solve for x
    x = 31,267,119,586.76/198,821.79
  6. Step 6: Final answer
    x = 157,262.04

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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.