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Finding the Fourth Proportional to 127,525.80, 191,288.70 and 80,831.40

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Solution

The fourth proportional to 127,525.80, 191,288.70 and 80,831.40 is: 121,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,525.80 : 191,288.70 = 80,831.40 : x
  2. Step 2: Convert to fraction form
    127,525.80/191,288.70 = 80,831.40/x
  3. Step 3: Cross multiply
    127,525.80x = 191,288.70 × 80,831.40
  4. Step 4: Simplify right side
    127,525.80x = 15,462,133,425.18
  5. Step 5: Solve for x
    x = 15,462,133,425.18/127,525.80
  6. Step 6: Final answer
    x = 121,247.10

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