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Finding the Fourth Proportional to 115,870.40, 173,935.20 and 108,256.40

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Solution

The fourth proportional to 115,870.40, 173,935.20 and 108,256.40 is: 162,505.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,870.40 : 173,935.20 = 108,256.40 : x
  2. Step 2: Convert to fraction form
    115,870.40/173,935.20 = 108,256.40/x
  3. Step 3: Cross multiply
    115,870.40x = 173,935.20 × 108,256.40
  4. Step 4: Simplify right side
    115,870.40x = 18,829,598,585.28
  5. Step 5: Solve for x
    x = 18,829,598,585.28/115,870.40
  6. Step 6: Final answer
    x = 162,505.68

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