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Finding the Fourth Proportional to 145,486.80, 218,230.20 and 122,677.20

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Solution

The fourth proportional to 145,486.80, 218,230.20 and 122,677.20 is: 184,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,486.80 : 218,230.20 = 122,677.20 : x
  2. Step 2: Convert to fraction form
    145,486.80/218,230.20 = 122,677.20/x
  3. Step 3: Cross multiply
    145,486.80x = 218,230.20 × 122,677.20
  4. Step 4: Simplify right side
    145,486.80x = 26,771,869,891.44
  5. Step 5: Solve for x
    x = 26,771,869,891.44/145,486.80
  6. Step 6: Final answer
    x = 184,015.80

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