Home / 120,818.62-166,735.26-67,103.86

Finding the Fourth Proportional to 120,818.62, 166,735.26 and 67,103.86

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Solution

The fourth proportional to 120,818.62, 166,735.26 and 67,103.86 is: 92,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.62 : 166,735.26 = 67,103.86 : x
  2. Step 2: Convert to fraction form
    120,818.62/166,735.26 = 67,103.86/x
  3. Step 3: Cross multiply
    120,818.62x = 166,735.26 × 67,103.86
  4. Step 4: Simplify right side
    120,818.62x = 11,188,579,544.10
  5. Step 5: Solve for x
    x = 11,188,579,544.10/120,818.62
  6. Step 6: Final answer
    x = 92,606.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.