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Finding the Fourth Proportional to 161,684.73, 242,630.87 and 108,436.86

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Solution

The fourth proportional to 161,684.73, 242,630.87 and 108,436.86 is: 162,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,684.73 : 242,630.87 = 108,436.86 : x
  2. Step 2: Convert to fraction form
    161,684.73/242,630.87 = 108,436.86/x
  3. Step 3: Cross multiply
    161,684.73x = 242,630.87 × 108,436.86
  4. Step 4: Simplify right side
    161,684.73x = 26,310,129,139.68
  5. Step 5: Solve for x
    x = 26,310,129,139.68/161,684.73
  6. Step 6: Final answer
    x = 162,724.89

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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.