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Finding the Fourth Proportional to 193,374.76, 289,765.48 and 80,993.48

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Solution

The fourth proportional to 193,374.76, 289,765.48 and 80,993.48 is: 121,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,374.76 : 289,765.48 = 80,993.48 : x
  2. Step 2: Convert to fraction form
    193,374.76/289,765.48 = 80,993.48/x
  3. Step 3: Cross multiply
    193,374.76x = 289,765.48 × 80,993.48
  4. Step 4: Simplify right side
    193,374.76x = 23,469,114,609.07
  5. Step 5: Solve for x
    x = 23,469,114,609.07/193,374.76
  6. Step 6: Final answer
    x = 121,365.97

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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.