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Finding the Fourth Proportional to 115,236.80, 172,855.20 and 32,130.80

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Solution

The fourth proportional to 115,236.80, 172,855.20 and 32,130.80 is: 48,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,236.80 : 172,855.20 = 32,130.80 : x
  2. Step 2: Convert to fraction form
    115,236.80/172,855.20 = 32,130.80/x
  3. Step 3: Cross multiply
    115,236.80x = 172,855.20 × 32,130.80
  4. Step 4: Simplify right side
    115,236.80x = 5,553,975,860.16
  5. Step 5: Solve for x
    x = 5,553,975,860.16/115,236.80
  6. Step 6: Final answer
    x = 48,196.20

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