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Finding the Fourth Proportional to 68,142.60, 102,234.78 and 34,886.22

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Solution

The fourth proportional to 68,142.60, 102,234.78 and 34,886.22 is: 52,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.60 : 102,234.78 = 34,886.22 : x
  2. Step 2: Convert to fraction form
    68,142.60/102,234.78 = 34,886.22/x
  3. Step 3: Cross multiply
    68,142.60x = 102,234.78 × 34,886.22
  4. Step 4: Simplify right side
    68,142.60x = 3,566,585,026.73
  5. Step 5: Solve for x
    x = 3,566,585,026.73/68,142.60
  6. Step 6: Final answer
    x = 52,340.02

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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.