Home / 146,659.20-220,016.16-67,721.28

Finding the Fourth Proportional to 146,659.20, 220,016.16 and 67,721.28

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Solution

The fourth proportional to 146,659.20, 220,016.16 and 67,721.28 is: 101,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,659.20 : 220,016.16 = 67,721.28 : x
  2. Step 2: Convert to fraction form
    146,659.20/220,016.16 = 67,721.28/x
  3. Step 3: Cross multiply
    146,659.20x = 220,016.16 × 67,721.28
  4. Step 4: Simplify right side
    146,659.20x = 14,899,775,975.88
  5. Step 5: Solve for x
    x = 14,899,775,975.88/146,659.20
  6. Step 6: Final answer
    x = 101,594.55

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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.