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Finding the Fourth Proportional to 146,512.20, 220,866.46 and 136,747.20

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Solution

The fourth proportional to 146,512.20, 220,866.46 and 136,747.20 is: 206,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,512.20 : 220,866.46 = 136,747.20 : x
  2. Step 2: Convert to fraction form
    146,512.20/220,866.46 = 136,747.20/x
  3. Step 3: Cross multiply
    146,512.20x = 220,866.46 × 136,747.20
  4. Step 4: Simplify right side
    146,512.20x = 30,202,869,978.91
  5. Step 5: Solve for x
    x = 30,202,869,978.91/146,512.20
  6. Step 6: Final answer
    x = 206,145.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.