Home / 198,743.61-274,265.97-113,861.01

Finding the Fourth Proportional to 198,743.61, 274,265.97 and 113,861.01

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Solution

The fourth proportional to 198,743.61, 274,265.97 and 113,861.01 is: 157,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,743.61 : 274,265.97 = 113,861.01 : x
  2. Step 2: Convert to fraction form
    198,743.61/274,265.97 = 113,861.01/x
  3. Step 3: Cross multiply
    198,743.61x = 274,265.97 × 113,861.01
  4. Step 4: Simplify right side
    198,743.61x = 31,228,200,352.83
  5. Step 5: Solve for x
    x = 31,228,200,352.83/198,743.61
  6. Step 6: Final answer
    x = 157,128.07

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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.