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Finding the Fourth Proportional to 171,571.37, 257,325.46 and 71,704.74

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Solution

The fourth proportional to 171,571.37, 257,325.46 and 71,704.74 is: 107,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,571.37 : 257,325.46 = 71,704.74 : x
  2. Step 2: Convert to fraction form
    171,571.37/257,325.46 = 71,704.74/x
  3. Step 3: Cross multiply
    171,571.37x = 257,325.46 × 71,704.74
  4. Step 4: Simplify right side
    171,571.37x = 18,451,455,990.39
  5. Step 5: Solve for x
    x = 18,451,455,990.39/171,571.37
  6. Step 6: Final answer
    x = 107,543.91

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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.