Home / 204,626.20-306,981.14-86,297.64

Finding the Fourth Proportional to 204,626.20, 306,981.14 and 86,297.64

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Solution

The fourth proportional to 204,626.20, 306,981.14 and 86,297.64 is: 129,464.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,626.20 : 306,981.14 = 86,297.64 : x
  2. Step 2: Convert to fraction form
    204,626.20/306,981.14 = 86,297.64/x
  3. Step 3: Cross multiply
    204,626.20x = 306,981.14 × 86,297.64
  4. Step 4: Simplify right side
    204,626.20x = 26,491,747,906.51
  5. Step 5: Solve for x
    x = 26,491,747,906.51/204,626.20
  6. Step 6: Final answer
    x = 129,464.11

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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.