Home / 146,921.10-220,851.45-136,520.70

Finding the Fourth Proportional to 146,921.10, 220,851.45 and 136,520.70

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Solution

The fourth proportional to 146,921.10, 220,851.45 and 136,520.70 is: 205,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,921.10 : 220,851.45 = 136,520.70 : x
  2. Step 2: Convert to fraction form
    146,921.10/220,851.45 = 136,520.70/x
  3. Step 3: Cross multiply
    146,921.10x = 220,851.45 × 136,520.70
  4. Step 4: Simplify right side
    146,921.10x = 30,150,794,550.02
  5. Step 5: Solve for x
    x = 30,150,794,550.02/146,921.10
  6. Step 6: Final answer
    x = 205,217.59

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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.