Home / 206,712.20-309,995.40-73,596.80

Finding the Fourth Proportional to 206,712.20, 309,995.40 and 73,596.80

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Solution

The fourth proportional to 206,712.20, 309,995.40 and 73,596.80 is: 110,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,712.20 : 309,995.40 = 73,596.80 : x
  2. Step 2: Convert to fraction form
    206,712.20/309,995.40 = 73,596.80/x
  3. Step 3: Cross multiply
    206,712.20x = 309,995.40 × 73,596.80
  4. Step 4: Simplify right side
    206,712.20x = 22,814,669,454.72
  5. Step 5: Solve for x
    x = 22,814,669,454.72/206,712.20
  6. Step 6: Final answer
    x = 110,369.25

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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.