Home / 204,826.14-307,028.10-78,431.85

Finding the Fourth Proportional to 204,826.14, 307,028.10 and 78,431.85

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Solution

The fourth proportional to 204,826.14, 307,028.10 and 78,431.85 is: 117,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,826.14 : 307,028.10 = 78,431.85 : x
  2. Step 2: Convert to fraction form
    204,826.14/307,028.10 = 78,431.85/x
  3. Step 3: Cross multiply
    204,826.14x = 307,028.10 × 78,431.85
  4. Step 4: Simplify right side
    204,826.14x = 24,080,781,884.99
  5. Step 5: Solve for x
    x = 24,080,781,884.99/204,826.14
  6. Step 6: Final answer
    x = 117,566.94

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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.