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Finding the Fourth Proportional to 171,157.26, 256,701.33 and 119,040.78

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Solution

The fourth proportional to 171,157.26, 256,701.33 and 119,040.78 is: 178,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,157.26 : 256,701.33 = 119,040.78 : x
  2. Step 2: Convert to fraction form
    171,157.26/256,701.33 = 119,040.78/x
  3. Step 3: Cross multiply
    171,157.26x = 256,701.33 × 119,040.78
  4. Step 4: Simplify right side
    171,157.26x = 30,557,926,550.24
  5. Step 5: Solve for x
    x = 30,557,926,550.24/171,157.26
  6. Step 6: Final answer
    x = 178,537.13

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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.