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Finding the Fourth Proportional to 171,069.81, 256,676.48 and 76,234.66

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Solution

The fourth proportional to 171,069.81, 256,676.48 and 76,234.66 is: 114,383.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,069.81 : 256,676.48 = 76,234.66 : x
  2. Step 2: Convert to fraction form
    171,069.81/256,676.48 = 76,234.66/x
  3. Step 3: Cross multiply
    171,069.81x = 256,676.48 × 76,234.66
  4. Step 4: Simplify right side
    171,069.81x = 19,567,644,182.80
  5. Step 5: Solve for x
    x = 19,567,644,182.80/171,069.81
  6. Step 6: Final answer
    x = 114,383.97

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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.