Home / 109,872.20-164,589.60-57,311.30

Finding the Fourth Proportional to 109,872.20, 164,589.60 and 57,311.30

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Solution

The fourth proportional to 109,872.20, 164,589.60 and 57,311.30 is: 85,852.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.20 : 164,589.60 = 57,311.30 : x
  2. Step 2: Convert to fraction form
    109,872.20/164,589.60 = 57,311.30/x
  3. Step 3: Cross multiply
    109,872.20x = 164,589.60 × 57,311.30
  4. Step 4: Simplify right side
    109,872.20x = 9,432,843,942.48
  5. Step 5: Solve for x
    x = 9,432,843,942.48/109,872.20
  6. Step 6: Final answer
    x = 85,852.87

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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.