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Finding the Fourth Proportional to 171,099.43, 256,476.93 and 71,314.87

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Solution

The fourth proportional to 171,099.43, 256,476.93 and 71,314.87 is: 106,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,099.43 : 256,476.93 = 71,314.87 : x
  2. Step 2: Convert to fraction form
    171,099.43/256,476.93 = 71,314.87/x
  3. Step 3: Cross multiply
    171,099.43x = 256,476.93 × 71,314.87
  4. Step 4: Simplify right side
    171,099.43x = 18,290,618,920.95
  5. Step 5: Solve for x
    x = 18,290,618,920.95/171,099.43
  6. Step 6: Final answer
    x = 106,900.53

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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.