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Finding the Fourth Proportional to 145,350.48, 200,575.98 and 81,684.12

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Solution

The fourth proportional to 145,350.48, 200,575.98 and 81,684.12 is: 112,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,350.48 : 200,575.98 = 81,684.12 : x
  2. Step 2: Convert to fraction form
    145,350.48/200,575.98 = 81,684.12/x
  3. Step 3: Cross multiply
    145,350.48x = 200,575.98 × 81,684.12
  4. Step 4: Simplify right side
    145,350.48x = 16,383,872,419.44
  5. Step 5: Solve for x
    x = 16,383,872,419.44/145,350.48
  6. Step 6: Final answer
    x = 112,719.77

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