Home / 146,502.90-219,754.35-80,147.70

Finding the Fourth Proportional to 146,502.90, 219,754.35 and 80,147.70

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Solution

The fourth proportional to 146,502.90, 219,754.35 and 80,147.70 is: 120,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,502.90 : 219,754.35 = 80,147.70 : x
  2. Step 2: Convert to fraction form
    146,502.90/219,754.35 = 80,147.70/x
  3. Step 3: Cross multiply
    146,502.90x = 219,754.35 × 80,147.70
  4. Step 4: Simplify right side
    146,502.90x = 17,612,805,717.50
  5. Step 5: Solve for x
    x = 17,612,805,717.50/146,502.90
  6. Step 6: Final answer
    x = 120,221.55

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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.