Home / 167,129.28-230,640.19-90,648.48

Finding the Fourth Proportional to 167,129.28, 230,640.19 and 90,648.48

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Solution

The fourth proportional to 167,129.28, 230,640.19 and 90,648.48 is: 125,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,129.28 : 230,640.19 = 90,648.48 : x
  2. Step 2: Convert to fraction form
    167,129.28/230,640.19 = 90,648.48/x
  3. Step 3: Cross multiply
    167,129.28x = 230,640.19 × 90,648.48
  4. Step 4: Simplify right side
    167,129.28x = 20,907,182,650.41
  5. Step 5: Solve for x
    x = 20,907,182,650.41/167,129.28
  6. Step 6: Final answer
    x = 125,095.87

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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.