Home / 166,766.72-230,135.78-91,315.22

Finding the Fourth Proportional to 166,766.72, 230,135.78 and 91,315.22

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Solution

The fourth proportional to 166,766.72, 230,135.78 and 91,315.22 is: 126,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,766.72 : 230,135.78 = 91,315.22 : x
  2. Step 2: Convert to fraction form
    166,766.72/230,135.78 = 91,315.22/x
  3. Step 3: Cross multiply
    166,766.72x = 230,135.78 × 91,315.22
  4. Step 4: Simplify right side
    166,766.72x = 21,014,898,458.18
  5. Step 5: Solve for x
    x = 21,014,898,458.18/166,766.72
  6. Step 6: Final answer
    x = 126,013.75

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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.