Home / 149,319.30-206,045.64-91,949.42

Finding the Fourth Proportional to 149,319.30, 206,045.64 and 91,949.42

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Solution

The fourth proportional to 149,319.30, 206,045.64 and 91,949.42 is: 126,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,319.30 : 206,045.64 = 91,949.42 : x
  2. Step 2: Convert to fraction form
    149,319.30/206,045.64 = 91,949.42/x
  3. Step 3: Cross multiply
    149,319.30x = 206,045.64 × 91,949.42
  4. Step 4: Simplify right side
    149,319.30x = 18,945,777,091.53
  5. Step 5: Solve for x
    x = 18,945,777,091.53/149,319.30
  6. Step 6: Final answer
    x = 126,880.97

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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.