Home / 120,383.81-166,129.32-69,396.26

Finding the Fourth Proportional to 120,383.81, 166,129.32 and 69,396.26

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Solution

The fourth proportional to 120,383.81, 166,129.32 and 69,396.26 is: 95,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,383.81 : 166,129.32 = 69,396.26 : x
  2. Step 2: Convert to fraction form
    120,383.81/166,129.32 = 69,396.26/x
  3. Step 3: Cross multiply
    120,383.81x = 166,129.32 × 69,396.26
  4. Step 4: Simplify right side
    120,383.81x = 11,528,752,653.70
  5. Step 5: Solve for x
    x = 11,528,752,653.70/120,383.81
  6. Step 6: Final answer
    x = 95,766.64

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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.