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Finding the Fourth Proportional to 185,142.80, 255,321.54 and 127,690.31

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Solution

The fourth proportional to 185,142.80, 255,321.54 and 127,690.31 is: 176,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,142.80 : 255,321.54 = 127,690.31 : x
  2. Step 2: Convert to fraction form
    185,142.80/255,321.54 = 127,690.31/x
  3. Step 3: Cross multiply
    185,142.80x = 255,321.54 × 127,690.31
  4. Step 4: Simplify right side
    185,142.80x = 32,602,085,315.67
  5. Step 5: Solve for x
    x = 32,602,085,315.67/185,142.80
  6. Step 6: Final answer
    x = 176,091.57

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