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Finding the Fourth Proportional to 171,094.71, 256,685.76 and 71,221.71

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Solution

The fourth proportional to 171,094.71, 256,685.76 and 71,221.71 is: 106,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,094.71 : 256,685.76 = 71,221.71 : x
  2. Step 2: Convert to fraction form
    171,094.71/256,685.76 = 71,221.71/x
  3. Step 3: Cross multiply
    171,094.71x = 256,685.76 × 71,221.71
  4. Step 4: Simplify right side
    171,094.71x = 18,281,598,759.85
  5. Step 5: Solve for x
    x = 18,281,598,759.85/171,094.71
  6. Step 6: Final answer
    x = 106,850.75

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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.