Home / 120,944,874.72-166,918,096.80-68,741,757.66

Finding the Fourth Proportional to 120,944,874.72, 166,918,096.80 and 68,741,757.66

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Solution

The fourth proportional to 120,944,874.72, 166,918,096.80 and 68,741,757.66 is: 94,871,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,944,874.72 : 166,918,096.80 = 68,741,757.66 : x
  2. Step 2: Convert to fraction form
    120,944,874.72/166,918,096.80 = 68,741,757.66/x
  3. Step 3: Cross multiply
    120,944,874.72x = 166,918,096.80 × 68,741,757.66
  4. Step 4: Simplify right side
    120,944,874.72x = 11,474,243,359,294,022
  5. Step 5: Solve for x
    x = 11,474,243,359,294,022/120,944,874.72
  6. Step 6: Final answer
    x = 94,871,679.23

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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.