Home / 120,519.33-166,318.34-66,076.62

Finding the Fourth Proportional to 120,519.33, 166,318.34 and 66,076.62

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Solution

The fourth proportional to 120,519.33, 166,318.34 and 66,076.62 is: 91,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,519.33 : 166,318.34 = 66,076.62 : x
  2. Step 2: Convert to fraction form
    120,519.33/166,318.34 = 66,076.62/x
  3. Step 3: Cross multiply
    120,519.33x = 166,318.34 × 66,076.62
  4. Step 4: Simplify right side
    120,519.33x = 10,989,753,751.21
  5. Step 5: Solve for x
    x = 10,989,753,751.21/120,519.33
  6. Step 6: Final answer
    x = 91,186.65

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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.