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Finding the Fourth Proportional to 127,690.20, 191,479.68 and 43,427.52

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Solution

The fourth proportional to 127,690.20, 191,479.68 and 43,427.52 is: 65,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,690.20 : 191,479.68 = 43,427.52 : x
  2. Step 2: Convert to fraction form
    127,690.20/191,479.68 = 43,427.52/x
  3. Step 3: Cross multiply
    127,690.20x = 191,479.68 × 43,427.52
  4. Step 4: Simplify right side
    127,690.20x = 8,315,487,632.79
  5. Step 5: Solve for x
    x = 8,315,487,632.79/127,690.20
  6. Step 6: Final answer
    x = 65,122.36

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