Home / 120,942.96-166,903.30-66,497.43

Finding the Fourth Proportional to 120,942.96, 166,903.30 and 66,497.43

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Solution

The fourth proportional to 120,942.96, 166,903.30 and 66,497.43 is: 91,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942.96 : 166,903.30 = 66,497.43 : x
  2. Step 2: Convert to fraction form
    120,942.96/166,903.30 = 66,497.43/x
  3. Step 3: Cross multiply
    120,942.96x = 166,903.30 × 66,497.43
  4. Step 4: Simplify right side
    120,942.96x = 11,098,640,176.03
  5. Step 5: Solve for x
    x = 11,098,640,176.03/120,942.96
  6. Step 6: Final answer
    x = 91,767.56

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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.