Home / 204,478.59-306,767.09-86,183.76

Finding the Fourth Proportional to 204,478.59, 306,767.09 and 86,183.76

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Solution

The fourth proportional to 204,478.59, 306,767.09 and 86,183.76 is: 129,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,478.59 : 306,767.09 = 86,183.76 : x
  2. Step 2: Convert to fraction form
    204,478.59/306,767.09 = 86,183.76/x
  3. Step 3: Cross multiply
    204,478.59x = 306,767.09 × 86,183.76
  4. Step 4: Simplify right side
    204,478.59x = 26,438,341,260.46
  5. Step 5: Solve for x
    x = 26,438,341,260.46/204,478.59
  6. Step 6: Final answer
    x = 129,296.38

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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.