Home / 120,609.22-166,450.92-66,911.50

Finding the Fourth Proportional to 120,609.22, 166,450.92 and 66,911.50

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Solution

The fourth proportional to 120,609.22, 166,450.92 and 66,911.50 is: 92,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,609.22 : 166,450.92 = 66,911.50 : x
  2. Step 2: Convert to fraction form
    120,609.22/166,450.92 = 66,911.50/x
  3. Step 3: Cross multiply
    120,609.22x = 166,450.92 × 66,911.50
  4. Step 4: Simplify right side
    120,609.22x = 11,137,480,733.58
  5. Step 5: Solve for x
    x = 11,137,480,733.58/120,609.22
  6. Step 6: Final answer
    x = 92,343.53

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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.