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Finding the Fourth Proportional to 117,398.80, 176,098.20 and 77,827.60

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Solution

The fourth proportional to 117,398.80, 176,098.20 and 77,827.60 is: 116,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,398.80 : 176,098.20 = 77,827.60 : x
  2. Step 2: Convert to fraction form
    117,398.80/176,098.20 = 77,827.60/x
  3. Step 3: Cross multiply
    117,398.80x = 176,098.20 × 77,827.60
  4. Step 4: Simplify right side
    117,398.80x = 13,705,300,270.32
  5. Step 5: Solve for x
    x = 13,705,300,270.32/117,398.80
  6. Step 6: Final answer
    x = 116,741.40

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