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Finding the Fourth Proportional to 161,847.86, 242,771.78 and 68,354.42

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Solution

The fourth proportional to 161,847.86, 242,771.78 and 68,354.42 is: 102,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,847.86 : 242,771.78 = 68,354.42 : x
  2. Step 2: Convert to fraction form
    161,847.86/242,771.78 = 68,354.42/x
  3. Step 3: Cross multiply
    161,847.86x = 242,771.78 × 68,354.42
  4. Step 4: Simplify right side
    161,847.86x = 16,594,523,171.29
  5. Step 5: Solve for x
    x = 16,594,523,171.29/161,847.86
  6. Step 6: Final answer
    x = 102,531.62

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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.