Home / 230,921.20-346,432.20-131,129.20

Finding the Fourth Proportional to 230,921.20, 346,432.20 and 131,129.20

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Solution

The fourth proportional to 230,921.20, 346,432.20 and 131,129.20 is: 196,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,921.20 : 346,432.20 = 131,129.20 : x
  2. Step 2: Convert to fraction form
    230,921.20/346,432.20 = 131,129.20/x
  3. Step 3: Cross multiply
    230,921.20x = 346,432.20 × 131,129.20
  4. Step 4: Simplify right side
    230,921.20x = 45,427,377,240.24
  5. Step 5: Solve for x
    x = 45,427,377,240.24/230,921.20
  6. Step 6: Final answer
    x = 196,722.42

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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.