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Finding the Fourth Proportional to 100,896.45, 139,237.08 and 58,479.58

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Solution

The fourth proportional to 100,896.45, 139,237.08 and 58,479.58 is: 80,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,896.45 : 139,237.08 = 58,479.58 : x
  2. Step 2: Convert to fraction form
    100,896.45/139,237.08 = 58,479.58/x
  3. Step 3: Cross multiply
    100,896.45x = 139,237.08 × 58,479.58
  4. Step 4: Simplify right side
    100,896.45x = 8,142,525,958.83
  5. Step 5: Solve for x
    x = 8,142,525,958.83/100,896.45
  6. Step 6: Final answer
    x = 80,701.81

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