Home / 149,856.62-206,816.43-81,883.92

Finding the Fourth Proportional to 149,856.62, 206,816.43 and 81,883.92

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Solution

The fourth proportional to 149,856.62, 206,816.43 and 81,883.92 is: 113,007.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,856.62 : 206,816.43 = 81,883.92 : x
  2. Step 2: Convert to fraction form
    149,856.62/206,816.43 = 81,883.92/x
  3. Step 3: Cross multiply
    149,856.62x = 206,816.43 × 81,883.92
  4. Step 4: Simplify right side
    149,856.62x = 16,934,941,091.43
  5. Step 5: Solve for x
    x = 16,934,941,091.43/149,856.62
  6. Step 6: Final answer
    x = 113,007.63

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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.