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Finding the Fourth Proportional to 192,464.60, 288,543.30 and 81,565.40

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Solution

The fourth proportional to 192,464.60, 288,543.30 and 81,565.40 is: 122,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,464.60 : 288,543.30 = 81,565.40 : x
  2. Step 2: Convert to fraction form
    192,464.60/288,543.30 = 81,565.40/x
  3. Step 3: Cross multiply
    192,464.60x = 288,543.30 × 81,565.40
  4. Step 4: Simplify right side
    192,464.60x = 23,535,149,681.82
  5. Step 5: Solve for x
    x = 23,535,149,681.82/192,464.60
  6. Step 6: Final answer
    x = 122,283.01

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