Home / 166,685.40-230,016.78-91,219.32

Finding the Fourth Proportional to 166,685.40, 230,016.78 and 91,219.32

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Solution

The fourth proportional to 166,685.40, 230,016.78 and 91,219.32 is: 125,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,685.40 : 230,016.78 = 91,219.32 : x
  2. Step 2: Convert to fraction form
    166,685.40/230,016.78 = 91,219.32/x
  3. Step 3: Cross multiply
    166,685.40x = 230,016.78 × 91,219.32
  4. Step 4: Simplify right side
    166,685.40x = 20,981,974,260.19
  5. Step 5: Solve for x
    x = 20,981,974,260.19/166,685.40
  6. Step 6: Final answer
    x = 125,877.70

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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.