Home / 149,436.24-206,220.70-81,453.22

Finding the Fourth Proportional to 149,436.24, 206,220.70 and 81,453.22

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Solution

The fourth proportional to 149,436.24, 206,220.70 and 81,453.22 is: 112,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,436.24 : 206,220.70 = 81,453.22 : x
  2. Step 2: Convert to fraction form
    149,436.24/206,220.70 = 81,453.22/x
  3. Step 3: Cross multiply
    149,436.24x = 206,220.70 × 81,453.22
  4. Step 4: Simplify right side
    149,436.24x = 16,797,340,045.65
  5. Step 5: Solve for x
    x = 16,797,340,045.65/149,436.24
  6. Step 6: Final answer
    x = 112,404.73

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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.