Home / 149,200.44-205,895.34-82,131

Finding the Fourth Proportional to 149,200.44, 205,895.34 and 82,131

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Solution

The fourth proportional to 149,200.44, 205,895.34 and 82,131 is: 113,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,200.44 : 205,895.34 = 82,131 : x
  2. Step 2: Convert to fraction form
    149,200.44/205,895.34 = 82,131/x
  3. Step 3: Cross multiply
    149,200.44x = 205,895.34 × 82,131
  4. Step 4: Simplify right side
    149,200.44x = 16,910,390,169.54
  5. Step 5: Solve for x
    x = 16,910,390,169.54/149,200.44
  6. Step 6: Final answer
    x = 113,340.08

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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.