Home / 131,261.31-196,596.45-91,993.73

Finding the Fourth Proportional to 131,261.31, 196,596.45 and 91,993.73

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Solution

The fourth proportional to 131,261.31, 196,596.45 and 91,993.73 is: 137,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,261.31 : 196,596.45 = 91,993.73 : x
  2. Step 2: Convert to fraction form
    131,261.31/196,596.45 = 91,993.73/x
  3. Step 3: Cross multiply
    131,261.31x = 196,596.45 × 91,993.73
  4. Step 4: Simplify right side
    131,261.31x = 18,085,639,757.28
  5. Step 5: Solve for x
    x = 18,085,639,757.28/131,261.31
  6. Step 6: Final answer
    x = 137,783.48

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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.