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Finding the Fourth Proportional to 168,490.90, 252,651.83 and 56,131.61

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Solution

The fourth proportional to 168,490.90, 252,651.83 and 56,131.61 is: 84,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,490.90 : 252,651.83 = 56,131.61 : x
  2. Step 2: Convert to fraction form
    168,490.90/252,651.83 = 56,131.61/x
  3. Step 3: Cross multiply
    168,490.90x = 252,651.83 × 56,131.61
  4. Step 4: Simplify right side
    168,490.90x = 14,181,753,987.35
  5. Step 5: Solve for x
    x = 14,181,753,987.35/168,490.90
  6. Step 6: Final answer
    x = 84,169.26

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