Home / 220,916.16-331,415.55-121,021.29

Finding the Fourth Proportional to 220,916.16, 331,415.55 and 121,021.29

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Solution

The fourth proportional to 220,916.16, 331,415.55 and 121,021.29 is: 181,554.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,916.16 : 331,415.55 = 121,021.29 : x
  2. Step 2: Convert to fraction form
    220,916.16/331,415.55 = 121,021.29/x
  3. Step 3: Cross multiply
    220,916.16x = 331,415.55 × 121,021.29
  4. Step 4: Simplify right side
    220,916.16x = 40,108,337,387.06
  5. Step 5: Solve for x
    x = 40,108,337,387.06/220,916.16
  6. Step 6: Final answer
    x = 181,554.57

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