Home / 149,912.66-206,881.98-89,471.54

Finding the Fourth Proportional to 149,912.66, 206,881.98 and 89,471.54

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Solution

The fourth proportional to 149,912.66, 206,881.98 and 89,471.54 is: 123,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,912.66 : 206,881.98 = 89,471.54 : x
  2. Step 2: Convert to fraction form
    149,912.66/206,881.98 = 89,471.54/x
  3. Step 3: Cross multiply
    149,912.66x = 206,881.98 × 89,471.54
  4. Step 4: Simplify right side
    149,912.66x = 18,510,049,348.85
  5. Step 5: Solve for x
    x = 18,510,049,348.85/149,912.66
  6. Step 6: Final answer
    x = 123,472.22

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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.