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Finding the Fourth Proportional to 115,158.94, 172,705.60 and 72,975.36

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Solution

The fourth proportional to 115,158.94, 172,705.60 and 72,975.36 is: 109,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,158.94 : 172,705.60 = 72,975.36 : x
  2. Step 2: Convert to fraction form
    115,158.94/172,705.60 = 72,975.36/x
  3. Step 3: Cross multiply
    115,158.94x = 172,705.60 × 72,975.36
  4. Step 4: Simplify right side
    115,158.94x = 12,603,253,334.02
  5. Step 5: Solve for x
    x = 12,603,253,334.02/115,158.94
  6. Step 6: Final answer
    x = 109,442.25

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