Home / 198,905.90-274,489.97-108,261.77

Finding the Fourth Proportional to 198,905.90, 274,489.97 and 108,261.77

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Solution

The fourth proportional to 198,905.90, 274,489.97 and 108,261.77 is: 149,401.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,905.90 : 274,489.97 = 108,261.77 : x
  2. Step 2: Convert to fraction form
    198,905.90/274,489.97 = 108,261.77/x
  3. Step 3: Cross multiply
    198,905.90x = 274,489.97 × 108,261.77
  4. Step 4: Simplify right side
    198,905.90x = 29,716,768,085.69
  5. Step 5: Solve for x
    x = 29,716,768,085.69/198,905.90
  6. Step 6: Final answer
    x = 149,401.14

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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.