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Finding the Fourth Proportional to 145,274.76, 200,477.96 and 81,611.18

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Solution

The fourth proportional to 145,274.76, 200,477.96 and 81,611.18 is: 112,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,274.76 : 200,477.96 = 81,611.18 : x
  2. Step 2: Convert to fraction form
    145,274.76/200,477.96 = 81,611.18/x
  3. Step 3: Cross multiply
    145,274.76x = 200,477.96 × 81,611.18
  4. Step 4: Simplify right side
    145,274.76x = 16,361,242,879.59
  5. Step 5: Solve for x
    x = 16,361,242,879.59/145,274.76
  6. Step 6: Final answer
    x = 112,622.75

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