Home / 149,393.38-206,160.15-81,410.92

Finding the Fourth Proportional to 149,393.38, 206,160.15 and 81,410.92

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Solution

The fourth proportional to 149,393.38, 206,160.15 and 81,410.92 is: 112,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,393.38 : 206,160.15 = 81,410.92 : x
  2. Step 2: Convert to fraction form
    149,393.38/206,160.15 = 81,410.92/x
  3. Step 3: Cross multiply
    149,393.38x = 206,160.15 × 81,410.92
  4. Step 4: Simplify right side
    149,393.38x = 16,783,687,478.84
  5. Step 5: Solve for x
    x = 16,783,687,478.84/149,393.38
  6. Step 6: Final answer
    x = 112,345.59

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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.