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Finding the Fourth Proportional to 103,666.78, 143,052.84 and 63,391.96

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Solution

The fourth proportional to 103,666.78, 143,052.84 and 63,391.96 is: 87,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.78 : 143,052.84 = 63,391.96 : x
  2. Step 2: Convert to fraction form
    103,666.78/143,052.84 = 63,391.96/x
  3. Step 3: Cross multiply
    103,666.78x = 143,052.84 × 63,391.96
  4. Step 4: Simplify right side
    103,666.78x = 9,068,399,911.17
  5. Step 5: Solve for x
    x = 9,068,399,911.17/103,666.78
  6. Step 6: Final answer
    x = 87,476.43

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