Home / 99,131.12-148,694.72-39,965.44

Finding the Fourth Proportional to 99,131.12, 148,694.72 and 39,965.44

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Solution

The fourth proportional to 99,131.12, 148,694.72 and 39,965.44 is: 59,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,131.12 : 148,694.72 = 39,965.44 : x
  2. Step 2: Convert to fraction form
    99,131.12/148,694.72 = 39,965.44/x
  3. Step 3: Cross multiply
    99,131.12x = 148,694.72 × 39,965.44
  4. Step 4: Simplify right side
    99,131.12x = 5,942,649,910.48
  5. Step 5: Solve for x
    x = 5,942,649,910.48/99,131.12
  6. Step 6: Final answer
    x = 59,947.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.