Home / 110,318.76-165,453.12-31,431.24

Finding the Fourth Proportional to 110,318.76, 165,453.12 and 31,431.24

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Solution

The fourth proportional to 110,318.76, 165,453.12 and 31,431.24 is: 47,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,318.76 : 165,453.12 = 31,431.24 : x
  2. Step 2: Convert to fraction form
    110,318.76/165,453.12 = 31,431.24/x
  3. Step 3: Cross multiply
    110,318.76x = 165,453.12 × 31,431.24
  4. Step 4: Simplify right side
    110,318.76x = 5,200,396,723.47
  5. Step 5: Solve for x
    x = 5,200,396,723.47/110,318.76
  6. Step 6: Final answer
    x = 47,139.73

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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.