Home / 203,749.58-281,161.78-113,100.25

Finding the Fourth Proportional to 203,749.58, 281,161.78 and 113,100.25

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Solution

The fourth proportional to 203,749.58, 281,161.78 and 113,100.25 is: 156,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,749.58 : 281,161.78 = 113,100.25 : x
  2. Step 2: Convert to fraction form
    203,749.58/281,161.78 = 113,100.25/x
  3. Step 3: Cross multiply
    203,749.58x = 281,161.78 × 113,100.25
  4. Step 4: Simplify right side
    203,749.58x = 31,799,467,786.16
  5. Step 5: Solve for x
    x = 31,799,467,786.16/203,749.58
  6. Step 6: Final answer
    x = 156,071.33

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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.