Home / 198,861.76-274,429.26-109,437.76

Finding the Fourth Proportional to 198,861.76, 274,429.26 and 109,437.76

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Solution

The fourth proportional to 198,861.76, 274,429.26 and 109,437.76 is: 151,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,861.76 : 274,429.26 = 109,437.76 : x
  2. Step 2: Convert to fraction form
    198,861.76/274,429.26 = 109,437.76/x
  3. Step 3: Cross multiply
    198,861.76x = 274,429.26 × 109,437.76
  4. Step 4: Simplify right side
    198,861.76x = 30,032,923,492.86
  5. Step 5: Solve for x
    x = 30,032,923,492.86/198,861.76
  6. Step 6: Final answer
    x = 151,024.13

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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.