Home / 204,563.24-306,886.70-86,234.60

Finding the Fourth Proportional to 204,563.24, 306,886.70 and 86,234.60

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Solution

The fourth proportional to 204,563.24, 306,886.70 and 86,234.60 is: 129,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,563.24 : 306,886.70 = 86,234.60 : x
  2. Step 2: Convert to fraction form
    204,563.24/306,886.70 = 86,234.60/x
  3. Step 3: Cross multiply
    204,563.24x = 306,886.70 × 86,234.60
  4. Step 4: Simplify right side
    204,563.24x = 26,464,251,819.82
  5. Step 5: Solve for x
    x = 26,464,251,819.82/204,563.24
  6. Step 6: Final answer
    x = 129,369.54

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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.