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Finding the Fourth Proportional to 155,926.10, 233,490.62 and 85,728.26

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Solution

The fourth proportional to 155,926.10, 233,490.62 and 85,728.26 is: 128,373.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,926.10 : 233,490.62 = 85,728.26 : x
  2. Step 2: Convert to fraction form
    155,926.10/233,490.62 = 85,728.26/x
  3. Step 3: Cross multiply
    155,926.10x = 233,490.62 × 85,728.26
  4. Step 4: Simplify right side
    155,926.10x = 20,016,744,578.92
  5. Step 5: Solve for x
    x = 20,016,744,578.92/155,926.10
  6. Step 6: Final answer
    x = 128,373.28

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