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Finding the Fourth Proportional to 169,997.20, 254,987.70 and 57,666.40

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Solution

The fourth proportional to 169,997.20, 254,987.70 and 57,666.40 is: 86,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,997.20 : 254,987.70 = 57,666.40 : x
  2. Step 2: Convert to fraction form
    169,997.20/254,987.70 = 57,666.40/x
  3. Step 3: Cross multiply
    169,997.20x = 254,987.70 × 57,666.40
  4. Step 4: Simplify right side
    169,997.20x = 14,704,222,703.28
  5. Step 5: Solve for x
    x = 14,704,222,703.28/169,997.20
  6. Step 6: Final answer
    x = 86,496.85

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