Home / 206,275.49-309,173.77-78,110.27

Finding the Fourth Proportional to 206,275.49, 309,173.77 and 78,110.27

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Solution

The fourth proportional to 206,275.49, 309,173.77 and 78,110.27 is: 117,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,275.49 : 309,173.77 = 78,110.27 : x
  2. Step 2: Convert to fraction form
    206,275.49/309,173.77 = 78,110.27/x
  3. Step 3: Cross multiply
    206,275.49x = 309,173.77 × 78,110.27
  4. Step 4: Simplify right side
    206,275.49x = 24,149,646,651.62
  5. Step 5: Solve for x
    x = 24,149,646,651.62/206,275.49
  6. Step 6: Final answer
    x = 117,074.73

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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.