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Finding the Fourth Proportional to 68,104.80, 102,197.16 and 28,658.88

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Solution

The fourth proportional to 68,104.80, 102,197.16 and 28,658.88 is: 43,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,104.80 : 102,197.16 = 28,658.88 : x
  2. Step 2: Convert to fraction form
    68,104.80/102,197.16 = 28,658.88/x
  3. Step 3: Cross multiply
    68,104.80x = 102,197.16 × 28,658.88
  4. Step 4: Simplify right side
    68,104.80x = 2,928,856,144.78
  5. Step 5: Solve for x
    x = 2,928,856,144.78/68,104.80
  6. Step 6: Final answer
    x = 43,005.14

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1.5x scale

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.