Home / 120,976.72-166,940.22-67,260.76

Finding the Fourth Proportional to 120,976.72, 166,940.22 and 67,260.76

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Solution

The fourth proportional to 120,976.72, 166,940.22 and 67,260.76 is: 92,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,976.72 : 166,940.22 = 67,260.76 : x
  2. Step 2: Convert to fraction form
    120,976.72/166,940.22 = 67,260.76/x
  3. Step 3: Cross multiply
    120,976.72x = 166,940.22 × 67,260.76
  4. Step 4: Simplify right side
    120,976.72x = 11,228,526,071.77
  5. Step 5: Solve for x
    x = 11,228,526,071.77/120,976.72
  6. Step 6: Final answer
    x = 92,815.59

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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.