Home / 204,105.20-306,052.32-91,689.30

Finding the Fourth Proportional to 204,105.20, 306,052.32 and 91,689.30

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Solution

The fourth proportional to 204,105.20, 306,052.32 and 91,689.30 is: 137,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,105.20 : 306,052.32 = 91,689.30 : x
  2. Step 2: Convert to fraction form
    204,105.20/306,052.32 = 91,689.30/x
  3. Step 3: Cross multiply
    204,105.20x = 306,052.32 × 91,689.30
  4. Step 4: Simplify right side
    204,105.20x = 28,061,723,328.01
  5. Step 5: Solve for x
    x = 28,061,723,328.01/204,105.20
  6. Step 6: Final answer
    x = 137,486.57

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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.