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Finding the Fourth Proportional to 123,381.89, 170,265.68 and 69,663.69

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Solution

The fourth proportional to 123,381.89, 170,265.68 and 69,663.69 is: 96,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,381.89 : 170,265.68 = 69,663.69 : x
  2. Step 2: Convert to fraction form
    123,381.89/170,265.68 = 69,663.69/x
  3. Step 3: Cross multiply
    123,381.89x = 170,265.68 × 69,663.69
  4. Step 4: Simplify right side
    123,381.89x = 11,861,335,200.84
  5. Step 5: Solve for x
    x = 11,861,335,200.84/123,381.89
  6. Step 6: Final answer
    x = 96,135.14

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