Home / 204,078.10-306,037.05-77,651.20

Finding the Fourth Proportional to 204,078.10, 306,037.05 and 77,651.20

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Solution

The fourth proportional to 204,078.10, 306,037.05 and 77,651.20 is: 116,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.10 : 306,037.05 = 77,651.20 : x
  2. Step 2: Convert to fraction form
    204,078.10/306,037.05 = 77,651.20/x
  3. Step 3: Cross multiply
    204,078.10x = 306,037.05 × 77,651.20
  4. Step 4: Simplify right side
    204,078.10x = 23,764,144,176.96
  5. Step 5: Solve for x
    x = 23,764,144,176.96/204,078.10
  6. Step 6: Final answer
    x = 116,446.32

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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.