Home / 120,982.42-166,951.37-66,534.12

Finding the Fourth Proportional to 120,982.42, 166,951.37 and 66,534.12

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Solution

The fourth proportional to 120,982.42, 166,951.37 and 66,534.12 is: 91,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,982.42 : 166,951.37 = 66,534.12 : x
  2. Step 2: Convert to fraction form
    120,982.42/166,951.37 = 66,534.12/x
  3. Step 3: Cross multiply
    120,982.42x = 166,951.37 × 66,534.12
  4. Step 4: Simplify right side
    120,982.42x = 11,107,961,318.32
  5. Step 5: Solve for x
    x = 11,107,961,318.32/120,982.42
  6. Step 6: Final answer
    x = 91,814.67

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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.