Home / 107,724.38-161,609.73-53,718.49

Finding the Fourth Proportional to 107,724.38, 161,609.73 and 53,718.49

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Solution

The fourth proportional to 107,724.38, 161,609.73 and 53,718.49 is: 80,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,724.38 : 161,609.73 = 53,718.49 : x
  2. Step 2: Convert to fraction form
    107,724.38/161,609.73 = 53,718.49/x
  3. Step 3: Cross multiply
    107,724.38x = 161,609.73 × 53,718.49
  4. Step 4: Simplify right side
    107,724.38x = 8,681,430,967.64
  5. Step 5: Solve for x
    x = 8,681,430,967.64/107,724.38
  6. Step 6: Final answer
    x = 80,589.29

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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.