Home / 168,121.50-231,876.42-107,697.76

Finding the Fourth Proportional to 168,121.50, 231,876.42 and 107,697.76

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Solution

The fourth proportional to 168,121.50, 231,876.42 and 107,697.76 is: 148,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,121.50 : 231,876.42 = 107,697.76 : x
  2. Step 2: Convert to fraction form
    168,121.50/231,876.42 = 107,697.76/x
  3. Step 3: Cross multiply
    168,121.50x = 231,876.42 × 107,697.76
  4. Step 4: Simplify right side
    168,121.50x = 24,972,571,030.82
  5. Step 5: Solve for x
    x = 24,972,571,030.82/168,121.50
  6. Step 6: Final answer
    x = 148,538.83

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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.