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Finding the Fourth Proportional to 113,878.10, 170,817.15 and 91,734.73

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Solution

The fourth proportional to 113,878.10, 170,817.15 and 91,734.73 is: 137,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,878.10 : 170,817.15 = 91,734.73 : x
  2. Step 2: Convert to fraction form
    113,878.10/170,817.15 = 91,734.73/x
  3. Step 3: Cross multiply
    113,878.10x = 170,817.15 × 91,734.73
  4. Step 4: Simplify right side
    113,878.10x = 15,669,865,134.62
  5. Step 5: Solve for x
    x = 15,669,865,134.62/113,878.10
  6. Step 6: Final answer
    x = 137,602.10

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