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Finding the Fourth Proportional to 68,165.60, 102,248.40 and 43,233.80

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Solution

The fourth proportional to 68,165.60, 102,248.40 and 43,233.80 is: 64,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.60 : 102,248.40 = 43,233.80 : x
  2. Step 2: Convert to fraction form
    68,165.60/102,248.40 = 43,233.80/x
  3. Step 3: Cross multiply
    68,165.60x = 102,248.40 × 43,233.80
  4. Step 4: Simplify right side
    68,165.60x = 4,420,586,875.92
  5. Step 5: Solve for x
    x = 4,420,586,875.92/68,165.60
  6. Step 6: Final answer
    x = 64,850.70

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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.