Home / 167,391.18-231,002.87-90,910.26

Finding the Fourth Proportional to 167,391.18, 231,002.87 and 90,910.26

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Solution

The fourth proportional to 167,391.18, 231,002.87 and 90,910.26 is: 125,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,391.18 : 231,002.87 = 90,910.26 : x
  2. Step 2: Convert to fraction form
    167,391.18/231,002.87 = 90,910.26/x
  3. Step 3: Cross multiply
    167,391.18x = 231,002.87 × 90,910.26
  4. Step 4: Simplify right side
    167,391.18x = 21,000,530,517.89
  5. Step 5: Solve for x
    x = 21,000,530,517.89/167,391.18
  6. Step 6: Final answer
    x = 125,457.81

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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.