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Finding the Fourth Proportional to 171,437.44, 257,196.92 and 71,542.12

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Solution

The fourth proportional to 171,437.44, 257,196.92 and 71,542.12 is: 107,330.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,437.44 : 257,196.92 = 71,542.12 : x
  2. Step 2: Convert to fraction form
    171,437.44/257,196.92 = 71,542.12/x
  3. Step 3: Cross multiply
    171,437.44x = 257,196.92 × 71,542.12
  4. Step 4: Simplify right side
    171,437.44x = 18,400,412,914.27
  5. Step 5: Solve for x
    x = 18,400,412,914.27/171,437.44
  6. Step 6: Final answer
    x = 107,330.19

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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.