Home / 107,538.33-161,185.83-54,145.44

Finding the Fourth Proportional to 107,538.33, 161,185.83 and 54,145.44

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Solution

The fourth proportional to 107,538.33, 161,185.83 and 54,145.44 is: 81,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,538.33 : 161,185.83 = 54,145.44 : x
  2. Step 2: Convert to fraction form
    107,538.33/161,185.83 = 54,145.44/x
  3. Step 3: Cross multiply
    107,538.33x = 161,185.83 × 54,145.44
  4. Step 4: Simplify right side
    107,538.33x = 8,727,477,687.12
  5. Step 5: Solve for x
    x = 8,727,477,687.12/107,538.33
  6. Step 6: Final answer
    x = 81,156.90

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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.