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Finding the Fourth Proportional to 163,936.80, 245,386.80 and 117,280.80

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Solution

The fourth proportional to 163,936.80, 245,386.80 and 117,280.80 is: 175,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,936.80 : 245,386.80 = 117,280.80 : x
  2. Step 2: Convert to fraction form
    163,936.80/245,386.80 = 117,280.80/x
  3. Step 3: Cross multiply
    163,936.80x = 245,386.80 × 117,280.80
  4. Step 4: Simplify right side
    163,936.80x = 28,779,160,213.44
  5. Step 5: Solve for x
    x = 28,779,160,213.44/163,936.80
  6. Step 6: Final answer
    x = 175,550.34

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