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Finding the Fourth Proportional to 161,310.80, 242,023.80 and 67,845.20

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Solution

The fourth proportional to 161,310.80, 242,023.80 and 67,845.20 is: 101,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,310.80 : 242,023.80 = 67,845.20 : x
  2. Step 2: Convert to fraction form
    161,310.80/242,023.80 = 67,845.20/x
  3. Step 3: Cross multiply
    161,310.80x = 242,023.80 × 67,845.20
  4. Step 4: Simplify right side
    161,310.80x = 16,420,153,115.76
  5. Step 5: Solve for x
    x = 16,420,153,115.76/161,310.80
  6. Step 6: Final answer
    x = 101,792.03

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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.