Home / 166,769.56-230,139.78-91,318.12

Finding the Fourth Proportional to 166,769.56, 230,139.78 and 91,318.12

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Solution

The fourth proportional to 166,769.56, 230,139.78 and 91,318.12 is: 126,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,769.56 : 230,139.78 = 91,318.12 : x
  2. Step 2: Convert to fraction form
    166,769.56/230,139.78 = 91,318.12/x
  3. Step 3: Cross multiply
    166,769.56x = 230,139.78 × 91,318.12
  4. Step 4: Simplify right side
    166,769.56x = 21,015,932,046.81
  5. Step 5: Solve for x
    x = 21,015,932,046.81/166,769.56
  6. Step 6: Final answer
    x = 126,017.79

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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.