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Finding the Fourth Proportional to 123,329.61, 170,052.99 and 91,110.85

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Solution

The fourth proportional to 123,329.61, 170,052.99 and 91,110.85 is: 125,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329.61 : 170,052.99 = 91,110.85 : x
  2. Step 2: Convert to fraction form
    123,329.61/170,052.99 = 91,110.85/x
  3. Step 3: Cross multiply
    123,329.61x = 170,052.99 × 91,110.85
  4. Step 4: Simplify right side
    123,329.61x = 15,493,671,697.14
  5. Step 5: Solve for x
    x = 15,493,671,697.14/123,329.61
  6. Step 6: Final answer
    x = 125,628.16

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