Home / 149,747.92-206,660.51-81,771.22

Finding the Fourth Proportional to 149,747.92, 206,660.51 and 81,771.22

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Solution

The fourth proportional to 149,747.92, 206,660.51 and 81,771.22 is: 112,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.92 : 206,660.51 = 81,771.22 : x
  2. Step 2: Convert to fraction form
    149,747.92/206,660.51 = 81,771.22/x
  3. Step 3: Cross multiply
    149,747.92x = 206,660.51 × 81,771.22
  4. Step 4: Simplify right side
    149,747.92x = 16,898,882,028.52
  5. Step 5: Solve for x
    x = 16,898,882,028.52/149,747.92
  6. Step 6: Final answer
    x = 112,848.86

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1.5x scale

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.