Home / 129,749.11-179,055.06-72,387.95

Finding the Fourth Proportional to 129,749.11, 179,055.06 and 72,387.95

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Solution

The fourth proportional to 129,749.11, 179,055.06 and 72,387.95 is: 99,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749.11 : 179,055.06 = 72,387.95 : x
  2. Step 2: Convert to fraction form
    129,749.11/179,055.06 = 72,387.95/x
  3. Step 3: Cross multiply
    129,749.11x = 179,055.06 × 72,387.95
  4. Step 4: Simplify right side
    129,749.11x = 12,961,427,563.80
  5. Step 5: Solve for x
    x = 12,961,427,563.80/129,749.11
  6. Step 6: Final answer
    x = 99,896.08

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