Home / 107,731.25-161,614.39-31,837.49

Finding the Fourth Proportional to 107,731.25, 161,614.39 and 31,837.49

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Solution

The fourth proportional to 107,731.25, 161,614.39 and 31,837.49 is: 47,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,731.25 : 161,614.39 = 31,837.49 : x
  2. Step 2: Convert to fraction form
    107,731.25/161,614.39 = 31,837.49/x
  3. Step 3: Cross multiply
    107,731.25x = 161,614.39 × 31,837.49
  4. Step 4: Simplify right side
    107,731.25x = 5,145,396,366.29
  5. Step 5: Solve for x
    x = 5,145,396,366.29/107,731.25
  6. Step 6: Final answer
    x = 47,761.41

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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.