Home / 198,827.76-274,389.88-113,961.20

Finding the Fourth Proportional to 198,827.76, 274,389.88 and 113,961.20

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Solution

The fourth proportional to 198,827.76, 274,389.88 and 113,961.20 is: 157,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,827.76 : 274,389.88 = 113,961.20 : x
  2. Step 2: Convert to fraction form
    198,827.76/274,389.88 = 113,961.20/x
  3. Step 3: Cross multiply
    198,827.76x = 274,389.88 × 113,961.20
  4. Step 4: Simplify right side
    198,827.76x = 31,269,799,992.66
  5. Step 5: Solve for x
    x = 31,269,799,992.66/198,827.76
  6. Step 6: Final answer
    x = 157,270.80

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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.