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Finding the Fourth Proportional to 161,699.58, 242,490.96 and 68,212.62

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Solution

The fourth proportional to 161,699.58, 242,490.96 and 68,212.62 is: 102,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,699.58 : 242,490.96 = 68,212.62 : x
  2. Step 2: Convert to fraction form
    161,699.58/242,490.96 = 68,212.62/x
  3. Step 3: Cross multiply
    161,699.58x = 242,490.96 × 68,212.62
  4. Step 4: Simplify right side
    161,699.58x = 16,540,943,707.92
  5. Step 5: Solve for x
    x = 16,540,943,707.92/161,699.58
  6. Step 6: Final answer
    x = 102,294.29

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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.