Home / 120,767.96-166,664.58-69,779

Finding the Fourth Proportional to 120,767.96, 166,664.58 and 69,779

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Solution

The fourth proportional to 120,767.96, 166,664.58 and 69,779 is: 96,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.96 : 166,664.58 = 69,779 : x
  2. Step 2: Convert to fraction form
    120,767.96/166,664.58 = 69,779/x
  3. Step 3: Cross multiply
    120,767.96x = 166,664.58 × 69,779
  4. Step 4: Simplify right side
    120,767.96x = 11,629,687,727.82
  5. Step 5: Solve for x
    x = 11,629,687,727.82/120,767.96
  6. Step 6: Final answer
    x = 96,297.79

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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.