Home / 131,174.40-196,465.56-91,906.80

Finding the Fourth Proportional to 131,174.40, 196,465.56 and 91,906.80

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Solution

The fourth proportional to 131,174.40, 196,465.56 and 91,906.80 is: 137,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.40 : 196,465.56 = 91,906.80 : x
  2. Step 2: Convert to fraction form
    131,174.40/196,465.56 = 91,906.80/x
  3. Step 3: Cross multiply
    131,174.40x = 196,465.56 × 91,906.80
  4. Step 4: Simplify right side
    131,174.40x = 18,056,520,929.81
  5. Step 5: Solve for x
    x = 18,056,520,929.81/131,174.40
  6. Step 6: Final answer
    x = 137,652.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.