Home / 126,939.69-175,175.69-69,582.20

Finding the Fourth Proportional to 126,939.69, 175,175.69 and 69,582.20

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Solution

The fourth proportional to 126,939.69, 175,175.69 and 69,582.20 is: 96,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,939.69 : 175,175.69 = 69,582.20 : x
  2. Step 2: Convert to fraction form
    126,939.69/175,175.69 = 69,582.20/x
  3. Step 3: Cross multiply
    126,939.69x = 175,175.69 × 69,582.20
  4. Step 4: Simplify right side
    126,939.69x = 12,189,108,672.93
  5. Step 5: Solve for x
    x = 12,189,108,672.93/126,939.69
  6. Step 6: Final answer
    x = 96,022.83

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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.