Home / 111,171.96-166,760.40-40,100.28

Finding the Fourth Proportional to 111,171.96, 166,760.40 and 40,100.28

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Solution

The fourth proportional to 111,171.96, 166,760.40 and 40,100.28 is: 60,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,171.96 : 166,760.40 = 40,100.28 : x
  2. Step 2: Convert to fraction form
    111,171.96/166,760.40 = 40,100.28/x
  3. Step 3: Cross multiply
    111,171.96x = 166,760.40 × 40,100.28
  4. Step 4: Simplify right side
    111,171.96x = 6,687,138,732.91
  5. Step 5: Solve for x
    x = 6,687,138,732.91/111,171.96
  6. Step 6: Final answer
    x = 60,151.31

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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.