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Finding the Fourth Proportional to 171,186.84, 256,613.38 and 71,375.56

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Solution

The fourth proportional to 171,186.84, 256,613.38 and 71,375.56 is: 106,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,186.84 : 256,613.38 = 71,375.56 : x
  2. Step 2: Convert to fraction form
    171,186.84/256,613.38 = 71,375.56/x
  3. Step 3: Cross multiply
    171,186.84x = 256,613.38 × 71,375.56
  4. Step 4: Simplify right side
    171,186.84x = 18,315,923,700.99
  5. Step 5: Solve for x
    x = 18,315,923,700.99/171,186.84
  6. Step 6: Final answer
    x = 106,993.76

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1.5x scale

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.