Home / 204,861.97-307,388.04-78,460.30

Finding the Fourth Proportional to 204,861.97, 307,388.04 and 78,460.30

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Solution

The fourth proportional to 204,861.97, 307,388.04 and 78,460.30 is: 117,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,861.97 : 307,388.04 = 78,460.30 : x
  2. Step 2: Convert to fraction form
    204,861.97/307,388.04 = 78,460.30/x
  3. Step 3: Cross multiply
    204,861.97x = 307,388.04 × 78,460.30
  4. Step 4: Simplify right side
    204,861.97x = 24,117,757,834.81
  5. Step 5: Solve for x
    x = 24,117,757,834.81/204,861.97
  6. Step 6: Final answer
    x = 117,726.87

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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.