Home / 107,628.31-161,435.90-40,147.31

Finding the Fourth Proportional to 107,628.31, 161,435.90 and 40,147.31

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Solution

The fourth proportional to 107,628.31, 161,435.90 and 40,147.31 is: 60,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,628.31 : 161,435.90 = 40,147.31 : x
  2. Step 2: Convert to fraction form
    107,628.31/161,435.90 = 40,147.31/x
  3. Step 3: Cross multiply
    107,628.31x = 161,435.90 × 40,147.31
  4. Step 4: Simplify right side
    107,628.31x = 6,481,217,626.39
  5. Step 5: Solve for x
    x = 6,481,217,626.39/107,628.31
  6. Step 6: Final answer
    x = 60,218.52

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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.