Home / 91,882.09-137,921.55-72,297.51

Finding the Fourth Proportional to 91,882.09, 137,921.55 and 72,297.51

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Solution

The fourth proportional to 91,882.09, 137,921.55 and 72,297.51 is: 108,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,882.09 : 137,921.55 = 72,297.51 : x
  2. Step 2: Convert to fraction form
    91,882.09/137,921.55 = 72,297.51/x
  3. Step 3: Cross multiply
    91,882.09x = 137,921.55 × 72,297.51
  4. Step 4: Simplify right side
    91,882.09x = 9,971,384,640.34
  5. Step 5: Solve for x
    x = 9,971,384,640.34/91,882.09
  6. Step 6: Final answer
    x = 108,523.70

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