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Finding the Fourth Proportional to 123,110.33, 169,889.87 and 69,394.33

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Solution

The fourth proportional to 123,110.33, 169,889.87 and 69,394.33 is: 95,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,110.33 : 169,889.87 = 69,394.33 : x
  2. Step 2: Convert to fraction form
    123,110.33/169,889.87 = 69,394.33/x
  3. Step 3: Cross multiply
    123,110.33x = 169,889.87 × 69,394.33
  4. Step 4: Simplify right side
    123,110.33x = 11,789,392,506.02
  5. Step 5: Solve for x
    x = 11,789,392,506.02/123,110.33
  6. Step 6: Final answer
    x = 95,762.82

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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.