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Finding the Fourth Proportional to 139,999.96, 193,195.72 and 76,339

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Solution

The fourth proportional to 139,999.96, 193,195.72 and 76,339 is: 105,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,999.96 : 193,195.72 = 76,339 : x
  2. Step 2: Convert to fraction form
    139,999.96/193,195.72 = 76,339/x
  3. Step 3: Cross multiply
    139,999.96x = 193,195.72 × 76,339
  4. Step 4: Simplify right side
    139,999.96x = 14,748,368,069.08
  5. Step 5: Solve for x
    x = 14,748,368,069.08/139,999.96
  6. Step 6: Final answer
    x = 105,345.52

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