Home / 166,728.28-250,016.78-71,913.66

Finding the Fourth Proportional to 166,728.28, 250,016.78 and 71,913.66

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Solution

The fourth proportional to 166,728.28, 250,016.78 and 71,913.66 is: 107,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,728.28 : 250,016.78 = 71,913.66 : x
  2. Step 2: Convert to fraction form
    166,728.28/250,016.78 = 71,913.66/x
  3. Step 3: Cross multiply
    166,728.28x = 250,016.78 × 71,913.66
  4. Step 4: Simplify right side
    166,728.28x = 17,979,621,711.21
  5. Step 5: Solve for x
    x = 17,979,621,711.21/166,728.28
  6. Step 6: Final answer
    x = 107,837.86

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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.