Home / 146,769.80-219,863.10-80,090.60

Finding the Fourth Proportional to 146,769.80, 219,863.10 and 80,090.60

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Solution

The fourth proportional to 146,769.80, 219,863.10 and 80,090.60 is: 119,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,769.80 : 219,863.10 = 80,090.60 : x
  2. Step 2: Convert to fraction form
    146,769.80/219,863.10 = 80,090.60/x
  3. Step 3: Cross multiply
    146,769.80x = 219,863.10 × 80,090.60
  4. Step 4: Simplify right side
    146,769.80x = 17,608,967,596.86
  5. Step 5: Solve for x
    x = 17,608,967,596.86/146,769.80
  6. Step 6: Final answer
    x = 119,976.78

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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.