Home / 149,982.70-206,976.24-81,998.59

Finding the Fourth Proportional to 149,982.70, 206,976.24 and 81,998.59

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Solution

The fourth proportional to 149,982.70, 206,976.24 and 81,998.59 is: 113,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,982.70 : 206,976.24 = 81,998.59 : x
  2. Step 2: Convert to fraction form
    149,982.70/206,976.24 = 81,998.59/x
  3. Step 3: Cross multiply
    149,982.70x = 206,976.24 × 81,998.59
  4. Step 4: Simplify right side
    149,982.70x = 16,971,759,843.50
  5. Step 5: Solve for x
    x = 16,971,759,843.50/149,982.70
  6. Step 6: Final answer
    x = 113,158.12

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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.