Home / 203,819.72-305,749.02-79,170.44

Finding the Fourth Proportional to 203,819.72, 305,749.02 and 79,170.44

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Solution

The fourth proportional to 203,819.72, 305,749.02 and 79,170.44 is: 118,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,819.72 : 305,749.02 = 79,170.44 : x
  2. Step 2: Convert to fraction form
    203,819.72/305,749.02 = 79,170.44/x
  3. Step 3: Cross multiply
    203,819.72x = 305,749.02 × 79,170.44
  4. Step 4: Simplify right side
    203,819.72x = 24,206,284,442.97
  5. Step 5: Solve for x
    x = 24,206,284,442.97/203,819.72
  6. Step 6: Final answer
    x = 118,763.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.