Home / 168,939.45-233,120.61-100,942.89

Finding the Fourth Proportional to 168,939.45, 233,120.61 and 100,942.89

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Solution

The fourth proportional to 168,939.45, 233,120.61 and 100,942.89 is: 139,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,939.45 : 233,120.61 = 100,942.89 : x
  2. Step 2: Convert to fraction form
    168,939.45/233,120.61 = 100,942.89/x
  3. Step 3: Cross multiply
    168,939.45x = 233,120.61 × 100,942.89
  4. Step 4: Simplify right side
    168,939.45x = 23,531,868,091.96
  5. Step 5: Solve for x
    x = 23,531,868,091.96/168,939.45
  6. Step 6: Final answer
    x = 139,291.73

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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.