Home / 120,861.82-166,735.65-80,536.24

Finding the Fourth Proportional to 120,861.82, 166,735.65 and 80,536.24

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Solution

The fourth proportional to 120,861.82, 166,735.65 and 80,536.24 is: 111,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,861.82 : 166,735.65 = 80,536.24 : x
  2. Step 2: Convert to fraction form
    120,861.82/166,735.65 = 80,536.24/x
  3. Step 3: Cross multiply
    120,861.82x = 166,735.65 × 80,536.24
  4. Step 4: Simplify right side
    120,861.82x = 13,428,262,324.96
  5. Step 5: Solve for x
    x = 13,428,262,324.96/120,861.82
  6. Step 6: Final answer
    x = 111,104.25

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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.