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Finding the Fourth Proportional to 179,888, 269,845.10 and 69,080

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Solution

The fourth proportional to 179,888, 269,845.10 and 69,080 is: 103,625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,888 : 269,845.10 = 69,080 : x
  2. Step 2: Convert to fraction form
    179,888/269,845.10 = 69,080/x
  3. Step 3: Cross multiply
    179,888x = 269,845.10 × 69,080
  4. Step 4: Simplify right side
    179,888x = 18,640,899,508
  5. Step 5: Solve for x
    x = 18,640,899,508/179,888
  6. Step 6: Final answer
    x = 103,625.03

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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.