Home / 107,542.20-161,313.29-51,211.52

Finding the Fourth Proportional to 107,542.20, 161,313.29 and 51,211.52

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Solution

The fourth proportional to 107,542.20, 161,313.29 and 51,211.52 is: 76,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,542.20 : 161,313.29 = 51,211.52 : x
  2. Step 2: Convert to fraction form
    107,542.20/161,313.29 = 51,211.52/x
  3. Step 3: Cross multiply
    107,542.20x = 161,313.29 × 51,211.52
  4. Step 4: Simplify right side
    107,542.20x = 8,261,099,418.83
  5. Step 5: Solve for x
    x = 8,261,099,418.83/107,542.20
  6. Step 6: Final answer
    x = 76,817.28

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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.