Home / 252,919.78-379,401.54-103,170.42

Finding the Fourth Proportional to 252,919.78, 379,401.54 and 103,170.42

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Solution

The fourth proportional to 252,919.78, 379,401.54 and 103,170.42 is: 154,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,919.78 : 379,401.54 = 103,170.42 : x
  2. Step 2: Convert to fraction form
    252,919.78/379,401.54 = 103,170.42/x
  3. Step 3: Cross multiply
    252,919.78x = 379,401.54 × 103,170.42
  4. Step 4: Simplify right side
    252,919.78x = 39,143,015,843.56
  5. Step 5: Solve for x
    x = 39,143,015,843.56/252,919.78
  6. Step 6: Final answer
    x = 154,764.55

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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.