Home / 111,471.48-167,200.92-81,516.36

Finding the Fourth Proportional to 111,471.48, 167,200.92 and 81,516.36

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Solution

The fourth proportional to 111,471.48, 167,200.92 and 81,516.36 is: 122,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,471.48 : 167,200.92 = 81,516.36 : x
  2. Step 2: Convert to fraction form
    111,471.48/167,200.92 = 81,516.36/x
  3. Step 3: Cross multiply
    111,471.48x = 167,200.92 × 81,516.36
  4. Step 4: Simplify right side
    111,471.48x = 13,629,610,387.05
  5. Step 5: Solve for x
    x = 13,629,610,387.05/111,471.48
  6. Step 6: Final answer
    x = 122,269.93

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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.