Home / 168,221.15-252,320.78-89,379.80

Finding the Fourth Proportional to 168,221.15, 252,320.78 and 89,379.80

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Solution

The fourth proportional to 168,221.15, 252,320.78 and 89,379.80 is: 134,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,221.15 : 252,320.78 = 89,379.80 : x
  2. Step 2: Convert to fraction form
    168,221.15/252,320.78 = 89,379.80/x
  3. Step 3: Cross multiply
    168,221.15x = 252,320.78 × 89,379.80
  4. Step 4: Simplify right side
    168,221.15x = 22,552,379,814.09
  5. Step 5: Solve for x
    x = 22,552,379,814.09/168,221.15
  6. Step 6: Final answer
    x = 134,063.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.