Home / 198,922.34-274,536.25-111,721.79

Finding the Fourth Proportional to 198,922.34, 274,536.25 and 111,721.79

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Solution

The fourth proportional to 198,922.34, 274,536.25 and 111,721.79 is: 154,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,922.34 : 274,536.25 = 111,721.79 : x
  2. Step 2: Convert to fraction form
    198,922.34/274,536.25 = 111,721.79/x
  3. Step 3: Cross multiply
    198,922.34x = 274,536.25 × 111,721.79
  4. Step 4: Simplify right side
    198,922.34x = 30,671,680,711.28
  5. Step 5: Solve for x
    x = 30,671,680,711.28/198,922.34
  6. Step 6: Final answer
    x = 154,189.22

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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.