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Finding the Fourth Proportional to 181,978.32, 272,782.80 and 69,629.70

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Solution

The fourth proportional to 181,978.32, 272,782.80 and 69,629.70 is: 104,373.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978.32 : 272,782.80 = 69,629.70 : x
  2. Step 2: Convert to fraction form
    181,978.32/272,782.80 = 69,629.70/x
  3. Step 3: Cross multiply
    181,978.32x = 272,782.80 × 69,629.70
  4. Step 4: Simplify right side
    181,978.32x = 18,993,784,529.16
  5. Step 5: Solve for x
    x = 18,993,784,529.16/181,978.32
  6. Step 6: Final answer
    x = 104,373.89

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