Home / 120,372,760.70-166,165,260.35-81,267,505.77

Finding the Fourth Proportional to 120,372,760.70, 166,165,260.35 and 81,267,505.77

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Solution

The fourth proportional to 120,372,760.70, 166,165,260.35 and 81,267,505.77 is: 112,183,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,760.70 : 166,165,260.35 = 81,267,505.77 : x
  2. Step 2: Convert to fraction form
    120,372,760.70/166,165,260.35 = 81,267,505.77/x
  3. Step 3: Cross multiply
    120,372,760.70x = 166,165,260.35 × 81,267,505.77
  4. Step 4: Simplify right side
    120,372,760.70x = 13,503,836,254,267,176
  5. Step 5: Solve for x
    x = 13,503,836,254,267,176/120,372,760.70
  6. Step 6: Final answer
    x = 112,183,488.83

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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.