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Finding the Fourth Proportional to 102,504.75, 141,473.01 and 85,478.95

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Solution

The fourth proportional to 102,504.75, 141,473.01 and 85,478.95 is: 117,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,504.75 : 141,473.01 = 85,478.95 : x
  2. Step 2: Convert to fraction form
    102,504.75/141,473.01 = 85,478.95/x
  3. Step 3: Cross multiply
    102,504.75x = 141,473.01 × 85,478.95
  4. Step 4: Simplify right side
    102,504.75x = 12,092,964,348.14
  5. Step 5: Solve for x
    x = 12,092,964,348.14/102,504.75
  6. Step 6: Final answer
    x = 117,974.67

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