Home / 198,921.74-274,535.34-111,721.14

Finding the Fourth Proportional to 198,921.74, 274,535.34 and 111,721.14

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Solution

The fourth proportional to 198,921.74, 274,535.34 and 111,721.14 is: 154,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.74 : 274,535.34 = 111,721.14 : x
  2. Step 2: Convert to fraction form
    198,921.74/274,535.34 = 111,721.14/x
  3. Step 3: Cross multiply
    198,921.74x = 274,535.34 × 111,721.14
  4. Step 4: Simplify right side
    198,921.74x = 30,671,401,155.09
  5. Step 5: Solve for x
    x = 30,671,401,155.09/198,921.74
  6. Step 6: Final answer
    x = 154,188.28

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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.