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Finding the Fourth Proportional to 145,488.12, 218,270.16 and 45,651.48

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Solution

The fourth proportional to 145,488.12, 218,270.16 and 45,651.48 is: 68,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,488.12 : 218,270.16 = 45,651.48 : x
  2. Step 2: Convert to fraction form
    145,488.12/218,270.16 = 45,651.48/x
  3. Step 3: Cross multiply
    145,488.12x = 218,270.16 × 45,651.48
  4. Step 4: Simplify right side
    145,488.12x = 9,964,355,843.84
  5. Step 5: Solve for x
    x = 9,964,355,843.84/145,488.12
  6. Step 6: Final answer
    x = 68,489.14

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