Home / 168,091.30-231,990.70-110,721.43

Finding the Fourth Proportional to 168,091.30, 231,990.70 and 110,721.43

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Solution

The fourth proportional to 168,091.30, 231,990.70 and 110,721.43 is: 152,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,091.30 : 231,990.70 = 110,721.43 : x
  2. Step 2: Convert to fraction form
    168,091.30/231,990.70 = 110,721.43/x
  3. Step 3: Cross multiply
    168,091.30x = 231,990.70 × 110,721.43
  4. Step 4: Simplify right side
    168,091.30x = 25,686,341,193.92
  5. Step 5: Solve for x
    x = 25,686,341,193.92/168,091.30
  6. Step 6: Final answer
    x = 152,811.84

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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.