Home / 111,472.48-167,202.42-81,517.36

Finding the Fourth Proportional to 111,472.48, 167,202.42 and 81,517.36

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Solution

The fourth proportional to 111,472.48, 167,202.42 and 81,517.36 is: 122,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,472.48 : 167,202.42 = 81,517.36 : x
  2. Step 2: Convert to fraction form
    111,472.48/167,202.42 = 81,517.36/x
  3. Step 3: Cross multiply
    111,472.48x = 167,202.42 × 81,517.36
  4. Step 4: Simplify right side
    111,472.48x = 13,629,899,864.01
  5. Step 5: Solve for x
    x = 13,629,899,864.01/111,472.48
  6. Step 6: Final answer
    x = 122,271.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.