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Finding the Fourth Proportional to 203,749.65, 281,160.99 and 113,101.13

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Solution

The fourth proportional to 203,749.65, 281,160.99 and 113,101.13 is: 156,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,749.65 : 281,160.99 = 113,101.13 : x
  2. Step 2: Convert to fraction form
    203,749.65/281,160.99 = 113,101.13/x
  3. Step 3: Cross multiply
    203,749.65x = 281,160.99 × 113,101.13
  4. Step 4: Simplify right side
    203,749.65x = 31,799,626,383.82
  5. Step 5: Solve for x
    x = 31,799,626,383.82/203,749.65
  6. Step 6: Final answer
    x = 156,072.05

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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.