Home / 120,958.20-166,909.56-67,234.50

Finding the Fourth Proportional to 120,958.20, 166,909.56 and 67,234.50

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Solution

The fourth proportional to 120,958.20, 166,909.56 and 67,234.50 is: 92,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,958.20 : 166,909.56 = 67,234.50 : x
  2. Step 2: Convert to fraction form
    120,958.20/166,909.56 = 67,234.50/x
  3. Step 3: Cross multiply
    120,958.20x = 166,909.56 × 67,234.50
  4. Step 4: Simplify right side
    120,958.20x = 11,222,080,811.82
  5. Step 5: Solve for x
    x = 11,222,080,811.82/120,958.20
  6. Step 6: Final answer
    x = 92,776.52

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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.