Home / 166,931.28-230,364-91,478.16

Finding the Fourth Proportional to 166,931.28, 230,364 and 91,478.16

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Solution

The fourth proportional to 166,931.28, 230,364 and 91,478.16 is: 126,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,931.28 : 230,364 = 91,478.16 : x
  2. Step 2: Convert to fraction form
    166,931.28/230,364 = 91,478.16/x
  3. Step 3: Cross multiply
    166,931.28x = 230,364 × 91,478.16
  4. Step 4: Simplify right side
    166,931.28x = 21,073,274,850.24
  5. Step 5: Solve for x
    x = 21,073,274,850.24/166,931.28
  6. Step 6: Final answer
    x = 126,239.22

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