Home / 120,474.03-166,260.42-66,765.09

Finding the Fourth Proportional to 120,474.03, 166,260.42 and 66,765.09

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Solution

The fourth proportional to 120,474.03, 166,260.42 and 66,765.09 is: 92,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,474.03 : 166,260.42 = 66,765.09 : x
  2. Step 2: Convert to fraction form
    120,474.03/166,260.42 = 66,765.09/x
  3. Step 3: Cross multiply
    120,474.03x = 166,260.42 × 66,765.09
  4. Step 4: Simplify right side
    120,474.03x = 11,100,391,904.74
  5. Step 5: Solve for x
    x = 11,100,391,904.74/120,474.03
  6. Step 6: Final answer
    x = 92,139.29

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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.