Home / 203,697.72-281,105.91-111,824.55

Finding the Fourth Proportional to 203,697.72, 281,105.91 and 111,824.55

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Solution

The fourth proportional to 203,697.72, 281,105.91 and 111,824.55 is: 154,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,697.72 : 281,105.91 = 111,824.55 : x
  2. Step 2: Convert to fraction form
    203,697.72/281,105.91 = 111,824.55/x
  3. Step 3: Cross multiply
    203,697.72x = 281,105.91 × 111,824.55
  4. Step 4: Simplify right side
    203,697.72x = 31,434,541,888.09
  5. Step 5: Solve for x
    x = 31,434,541,888.09/203,697.72
  6. Step 6: Final answer
    x = 154,319.56

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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.