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Finding the Fourth Proportional to 123,690.88, 170,663.68 and 83,479.04

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Solution

The fourth proportional to 123,690.88, 170,663.68 and 83,479.04 is: 115,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,690.88 : 170,663.68 = 83,479.04 : x
  2. Step 2: Convert to fraction form
    123,690.88/170,663.68 = 83,479.04/x
  3. Step 3: Cross multiply
    123,690.88x = 170,663.68 × 83,479.04
  4. Step 4: Simplify right side
    123,690.88x = 14,246,840,169.27
  5. Step 5: Solve for x
    x = 14,246,840,169.27/123,690.88
  6. Step 6: Final answer
    x = 115,181.01

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