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Finding the Fourth Proportional to 125,074.36, 172,629.42 and 79,741.90

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Solution

The fourth proportional to 125,074.36, 172,629.42 and 79,741.90 is: 110,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,074.36 : 172,629.42 = 79,741.90 : x
  2. Step 2: Convert to fraction form
    125,074.36/172,629.42 = 79,741.90/x
  3. Step 3: Cross multiply
    125,074.36x = 172,629.42 × 79,741.90
  4. Step 4: Simplify right side
    125,074.36x = 13,765,797,946.70
  5. Step 5: Solve for x
    x = 13,765,797,946.70/125,074.36
  6. Step 6: Final answer
    x = 110,060.91

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