Home / 198,920.74-274,533.96-111,720.14

Finding the Fourth Proportional to 198,920.74, 274,533.96 and 111,720.14

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Solution

The fourth proportional to 198,920.74, 274,533.96 and 111,720.14 is: 154,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,920.74 : 274,533.96 = 111,720.14 : x
  2. Step 2: Convert to fraction form
    198,920.74/274,533.96 = 111,720.14/x
  3. Step 3: Cross multiply
    198,920.74x = 274,533.96 × 111,720.14
  4. Step 4: Simplify right side
    198,920.74x = 30,670,972,445.95
  5. Step 5: Solve for x
    x = 30,670,972,445.95/198,920.74
  6. Step 6: Final answer
    x = 154,186.90

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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.