Home / 120,911.73-166,856.11-67,195.36

Finding the Fourth Proportional to 120,911.73, 166,856.11 and 67,195.36

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Solution

The fourth proportional to 120,911.73, 166,856.11 and 67,195.36 is: 92,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,911.73 : 166,856.11 = 67,195.36 : x
  2. Step 2: Convert to fraction form
    120,911.73/166,856.11 = 67,195.36/x
  3. Step 3: Cross multiply
    120,911.73x = 166,856.11 × 67,195.36
  4. Step 4: Simplify right side
    120,911.73x = 11,211,956,379.65
  5. Step 5: Solve for x
    x = 11,211,956,379.65/120,911.73
  6. Step 6: Final answer
    x = 92,728.44

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1.5x scale

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.