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Finding the Fourth Proportional to 162,327, 243,276.66 and 68,716.92

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Solution

The fourth proportional to 162,327, 243,276.66 and 68,716.92 is: 102,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,327 : 243,276.66 = 68,716.92 : x
  2. Step 2: Convert to fraction form
    162,327/243,276.66 = 68,716.92/x
  3. Step 3: Cross multiply
    162,327x = 243,276.66 × 68,716.92
  4. Step 4: Simplify right side
    162,327x = 16,717,222,783.09
  5. Step 5: Solve for x
    x = 16,717,222,783.09/162,327
  6. Step 6: Final answer
    x = 102,984.86

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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.