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Finding the Fourth Proportional to 135,481.42, 203,147.47 and 46,661.68

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Solution

The fourth proportional to 135,481.42, 203,147.47 and 46,661.68 is: 69,966.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,481.42 : 203,147.47 = 46,661.68 : x
  2. Step 2: Convert to fraction form
    135,481.42/203,147.47 = 46,661.68/x
  3. Step 3: Cross multiply
    135,481.42x = 203,147.47 × 46,661.68
  4. Step 4: Simplify right side
    135,481.42x = 9,479,202,237.95
  5. Step 5: Solve for x
    x = 9,479,202,237.95/135,481.42
  6. Step 6: Final answer
    x = 69,966.81

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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.