Home / 120,944.85-166,905.88-66,499.32

Finding the Fourth Proportional to 120,944.85, 166,905.88 and 66,499.32

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Solution

The fourth proportional to 120,944.85, 166,905.88 and 66,499.32 is: 91,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,944.85 : 166,905.88 = 66,499.32 : x
  2. Step 2: Convert to fraction form
    120,944.85/166,905.88 = 66,499.32/x
  3. Step 3: Cross multiply
    120,944.85x = 166,905.88 × 66,499.32
  4. Step 4: Simplify right side
    120,944.85x = 11,099,126,523.22
  5. Step 5: Solve for x
    x = 11,099,126,523.22/120,944.85
  6. Step 6: Final answer
    x = 91,770.15

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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.