Home / 198,849.75-274,367.18-112,788.18

Finding the Fourth Proportional to 198,849.75, 274,367.18 and 112,788.18

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Solution

The fourth proportional to 198,849.75, 274,367.18 and 112,788.18 is: 155,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,849.75 : 274,367.18 = 112,788.18 : x
  2. Step 2: Convert to fraction form
    198,849.75/274,367.18 = 112,788.18/x
  3. Step 3: Cross multiply
    198,849.75x = 274,367.18 × 112,788.18
  4. Step 4: Simplify right side
    198,849.75x = 30,945,374,319.99
  5. Step 5: Solve for x
    x = 30,945,374,319.99/198,849.75
  6. Step 6: Final answer
    x = 155,621.89

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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.