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Finding the Fourth Proportional to 171,129.41, 256,694.56 and 69,927.47

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Solution

The fourth proportional to 171,129.41, 256,694.56 and 69,927.47 is: 104,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,129.41 : 256,694.56 = 69,927.47 : x
  2. Step 2: Convert to fraction form
    171,129.41/256,694.56 = 69,927.47/x
  3. Step 3: Cross multiply
    171,129.41x = 256,694.56 × 69,927.47
  4. Step 4: Simplify right side
    171,129.41x = 17,950,001,522.52
  5. Step 5: Solve for x
    x = 17,950,001,522.52/171,129.41
  6. Step 6: Final answer
    x = 104,891.39

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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.