Home / 168,153.50-231,920.55-107,729.73

Finding the Fourth Proportional to 168,153.50, 231,920.55 and 107,729.73

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Solution

The fourth proportional to 168,153.50, 231,920.55 and 107,729.73 is: 148,582.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,153.50 : 231,920.55 = 107,729.73 : x
  2. Step 2: Convert to fraction form
    168,153.50/231,920.55 = 107,729.73/x
  3. Step 3: Cross multiply
    168,153.50x = 231,920.55 × 107,729.73
  4. Step 4: Simplify right side
    168,153.50x = 24,984,738,232.95
  5. Step 5: Solve for x
    x = 24,984,738,232.95/168,153.50
  6. Step 6: Final answer
    x = 148,582.93

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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.