Home / 123,540.30-185,310.45-108,285.98

Finding the Fourth Proportional to 123,540.30, 185,310.45 and 108,285.98

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Solution

The fourth proportional to 123,540.30, 185,310.45 and 108,285.98 is: 162,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,540.30 : 185,310.45 = 108,285.98 : x
  2. Step 2: Convert to fraction form
    123,540.30/185,310.45 = 108,285.98/x
  3. Step 3: Cross multiply
    123,540.30x = 185,310.45 × 108,285.98
  4. Step 4: Simplify right side
    123,540.30x = 20,066,522,755.94
  5. Step 5: Solve for x
    x = 20,066,522,755.94/123,540.30
  6. Step 6: Final answer
    x = 162,428.96

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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.