Home / 120,550.85-166,357.61-69,559.58

Finding the Fourth Proportional to 120,550.85, 166,357.61 and 69,559.58

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Solution

The fourth proportional to 120,550.85, 166,357.61 and 69,559.58 is: 95,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,550.85 : 166,357.61 = 69,559.58 : x
  2. Step 2: Convert to fraction form
    120,550.85/166,357.61 = 69,559.58/x
  3. Step 3: Cross multiply
    120,550.85x = 166,357.61 × 69,559.58
  4. Step 4: Simplify right side
    120,550.85x = 11,571,765,481.40
  5. Step 5: Solve for x
    x = 11,571,765,481.40/120,550.85
  6. Step 6: Final answer
    x = 95,990.74

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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.