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Finding the Fourth Proportional to 171,063.54, 256,639.05 and 71,190.54

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Solution

The fourth proportional to 171,063.54, 256,639.05 and 71,190.54 is: 106,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,063.54 : 256,639.05 = 71,190.54 : x
  2. Step 2: Convert to fraction form
    171,063.54/256,639.05 = 71,190.54/x
  3. Step 3: Cross multiply
    171,063.54x = 256,639.05 × 71,190.54
  4. Step 4: Simplify right side
    171,063.54x = 18,270,272,554.59
  5. Step 5: Solve for x
    x = 18,270,272,554.59/171,063.54
  6. Step 6: Final answer
    x = 106,804.01

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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.