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Finding the Fourth Proportional to 139,989.82, 193,188.63 and 76,330.30

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Solution

The fourth proportional to 139,989.82, 193,188.63 and 76,330.30 is: 105,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,989.82 : 193,188.63 = 76,330.30 : x
  2. Step 2: Convert to fraction form
    139,989.82/193,188.63 = 76,330.30/x
  3. Step 3: Cross multiply
    139,989.82x = 193,188.63 × 76,330.30
  4. Step 4: Simplify right side
    139,989.82x = 14,746,146,084.49
  5. Step 5: Solve for x
    x = 14,746,146,084.49/139,989.82
  6. Step 6: Final answer
    x = 105,337.27

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