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Finding the Fourth Proportional to 171,119.10, 256,696.25 and 64,592.78

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Solution

The fourth proportional to 171,119.10, 256,696.25 and 64,592.78 is: 96,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,119.10 : 256,696.25 = 64,592.78 : x
  2. Step 2: Convert to fraction form
    171,119.10/256,696.25 = 64,592.78/x
  3. Step 3: Cross multiply
    171,119.10x = 256,696.25 × 64,592.78
  4. Step 4: Simplify right side
    171,119.10x = 16,580,724,721.85
  5. Step 5: Solve for x
    x = 16,580,724,721.85/171,119.10
  6. Step 6: Final answer
    x = 96,895.82

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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.