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Finding the Fourth Proportional to 103,637.80, 155,226.30 and 89,813.80

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Solution

The fourth proportional to 103,637.80, 155,226.30 and 89,813.80 is: 134,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.80 : 155,226.30 = 89,813.80 : x
  2. Step 2: Convert to fraction form
    103,637.80/155,226.30 = 89,813.80/x
  3. Step 3: Cross multiply
    103,637.80x = 155,226.30 × 89,813.80
  4. Step 4: Simplify right side
    103,637.80x = 13,941,463,862.94
  5. Step 5: Solve for x
    x = 13,941,463,862.94/103,637.80
  6. Step 6: Final answer
    x = 134,521.03

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