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Finding the Fourth Proportional to 139,869.76, 193,020.26 and 76,207.55

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Solution

The fourth proportional to 139,869.76, 193,020.26 and 76,207.55 is: 105,166.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,869.76 : 193,020.26 = 76,207.55 : x
  2. Step 2: Convert to fraction form
    139,869.76/193,020.26 = 76,207.55/x
  3. Step 3: Cross multiply
    139,869.76x = 193,020.26 × 76,207.55
  4. Step 4: Simplify right side
    139,869.76x = 14,709,601,877.92
  5. Step 5: Solve for x
    x = 14,709,601,877.92/139,869.76
  6. Step 6: Final answer
    x = 105,166.42

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