Home / 204,983.91-307,570.77-78,581.88

Finding the Fourth Proportional to 204,983.91, 307,570.77 and 78,581.88

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Solution

The fourth proportional to 204,983.91, 307,570.77 and 78,581.88 is: 117,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,983.91 : 307,570.77 = 78,581.88 : x
  2. Step 2: Convert to fraction form
    204,983.91/307,570.77 = 78,581.88/x
  3. Step 3: Cross multiply
    204,983.91x = 307,570.77 × 78,581.88
  4. Step 4: Simplify right side
    204,983.91x = 24,169,489,339.65
  5. Step 5: Solve for x
    x = 24,169,489,339.65/204,983.91
  6. Step 6: Final answer
    x = 117,909.20

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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.