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Finding the Fourth Proportional to 167,616, 231,310.08 and 100,569.60

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Solution

The fourth proportional to 167,616, 231,310.08 and 100,569.60 is: 138,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,616 : 231,310.08 = 100,569.60 : x
  2. Step 2: Convert to fraction form
    167,616/231,310.08 = 100,569.60/x
  3. Step 3: Cross multiply
    167,616x = 231,310.08 × 100,569.60
  4. Step 4: Simplify right side
    167,616x = 23,262,762,221.57
  5. Step 5: Solve for x
    x = 23,262,762,221.57/167,616
  6. Step 6: Final answer
    x = 138,786.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.