Home / 106,433.20-159,431.10-73,190.80

Finding the Fourth Proportional to 106,433.20, 159,431.10 and 73,190.80

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Solution

The fourth proportional to 106,433.20, 159,431.10 and 73,190.80 is: 109,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,433.20 : 159,431.10 = 73,190.80 : x
  2. Step 2: Convert to fraction form
    106,433.20/159,431.10 = 73,190.80/x
  3. Step 3: Cross multiply
    106,433.20x = 159,431.10 × 73,190.80
  4. Step 4: Simplify right side
    106,433.20x = 11,668,889,753.88
  5. Step 5: Solve for x
    x = 11,668,889,753.88/106,433.20
  6. Step 6: Final answer
    x = 109,635.81

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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.