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Finding the Fourth Proportional to 171,393.60, 257,163.30 and 82,601.40

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Solution

The fourth proportional to 171,393.60, 257,163.30 and 82,601.40 is: 123,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,393.60 : 257,163.30 = 82,601.40 : x
  2. Step 2: Convert to fraction form
    171,393.60/257,163.30 = 82,601.40/x
  3. Step 3: Cross multiply
    171,393.60x = 257,163.30 × 82,601.40
  4. Step 4: Simplify right side
    171,393.60x = 21,242,048,608.62
  5. Step 5: Solve for x
    x = 21,242,048,608.62/171,393.60
  6. Step 6: Final answer
    x = 123,937.23

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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.