Home / 149,447.52-206,238.96-82,381.92

Finding the Fourth Proportional to 149,447.52, 206,238.96 and 82,381.92

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Solution

The fourth proportional to 149,447.52, 206,238.96 and 82,381.92 is: 113,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,447.52 : 206,238.96 = 82,381.92 : x
  2. Step 2: Convert to fraction form
    149,447.52/206,238.96 = 82,381.92/x
  3. Step 3: Cross multiply
    149,447.52x = 206,238.96 × 82,381.92
  4. Step 4: Simplify right side
    149,447.52x = 16,990,361,503.60
  5. Step 5: Solve for x
    x = 16,990,361,503.60/149,447.52
  6. Step 6: Final answer
    x = 113,687.81

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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.