Home / 203,728.57-281,115.45-113,085.23

Finding the Fourth Proportional to 203,728.57, 281,115.45 and 113,085.23

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Solution

The fourth proportional to 203,728.57, 281,115.45 and 113,085.23 is: 156,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,728.57 : 281,115.45 = 113,085.23 : x
  2. Step 2: Convert to fraction form
    203,728.57/281,115.45 = 113,085.23/x
  3. Step 3: Cross multiply
    203,728.57x = 281,115.45 × 113,085.23
  4. Step 4: Simplify right side
    203,728.57x = 31,790,003,914.23
  5. Step 5: Solve for x
    x = 31,790,003,914.23/203,728.57
  6. Step 6: Final answer
    x = 156,040.97

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Find fourth proportional to 203,729.57, 281,116.83 and 113,086.23
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1.5x scale

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.