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Finding the Fourth Proportional to 117,916.40, 176,896.20 and 47,802.80

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Solution

The fourth proportional to 117,916.40, 176,896.20 and 47,802.80 is: 71,712.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,916.40 : 176,896.20 = 47,802.80 : x
  2. Step 2: Convert to fraction form
    117,916.40/176,896.20 = 47,802.80/x
  3. Step 3: Cross multiply
    117,916.40x = 176,896.20 × 47,802.80
  4. Step 4: Simplify right side
    117,916.40x = 8,456,133,669.36
  5. Step 5: Solve for x
    x = 8,456,133,669.36/117,916.40
  6. Step 6: Final answer
    x = 71,712.96

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