Home / 149,524.80-206,346.72-81,542.16

Finding the Fourth Proportional to 149,524.80, 206,346.72 and 81,542.16

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Solution

The fourth proportional to 149,524.80, 206,346.72 and 81,542.16 is: 112,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,524.80 : 206,346.72 = 81,542.16 : x
  2. Step 2: Convert to fraction form
    149,524.80/206,346.72 = 81,542.16/x
  3. Step 3: Cross multiply
    149,524.80x = 206,346.72 × 81,542.16
  4. Step 4: Simplify right side
    149,524.80x = 16,825,957,257.72
  5. Step 5: Solve for x
    x = 16,825,957,257.72/149,524.80
  6. Step 6: Final answer
    x = 112,529.54

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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.