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Finding the Fourth Proportional to 171,107.60, 256,584.60 and 65,891.60

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Solution

The fourth proportional to 171,107.60, 256,584.60 and 65,891.60 is: 98,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,107.60 : 256,584.60 = 65,891.60 : x
  2. Step 2: Convert to fraction form
    171,107.60/256,584.60 = 65,891.60/x
  3. Step 3: Cross multiply
    171,107.60x = 256,584.60 × 65,891.60
  4. Step 4: Simplify right side
    171,107.60x = 16,906,769,829.36
  5. Step 5: Solve for x
    x = 16,906,769,829.36/171,107.60
  6. Step 6: Final answer
    x = 98,807.83

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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.