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Finding the Fourth Proportional to 114,326.48, 171,427.85 and 90,785.46

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Solution

The fourth proportional to 114,326.48, 171,427.85 and 90,785.46 is: 136,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,326.48 : 171,427.85 = 90,785.46 : x
  2. Step 2: Convert to fraction form
    114,326.48/171,427.85 = 90,785.46/x
  3. Step 3: Cross multiply
    114,326.48x = 171,427.85 × 90,785.46
  4. Step 4: Simplify right side
    114,326.48x = 15,563,155,765.13
  5. Step 5: Solve for x
    x = 15,563,155,765.13/114,326.48
  6. Step 6: Final answer
    x = 136,129.06

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