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Finding the Fourth Proportional to 123,522.77, 170,456.97 and 69,806.60

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Solution

The fourth proportional to 123,522.77, 170,456.97 and 69,806.60 is: 96,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,522.77 : 170,456.97 = 69,806.60 : x
  2. Step 2: Convert to fraction form
    123,522.77/170,456.97 = 69,806.60/x
  3. Step 3: Cross multiply
    123,522.77x = 170,456.97 × 69,806.60
  4. Step 4: Simplify right side
    123,522.77x = 11,899,021,522.00
  5. Step 5: Solve for x
    x = 11,899,021,522.00/123,522.77
  6. Step 6: Final answer
    x = 96,330.59

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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.