Home / 168,193.19-231,918.05-137,470.97

Finding the Fourth Proportional to 168,193.19, 231,918.05 and 137,470.97

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Solution

The fourth proportional to 168,193.19, 231,918.05 and 137,470.97 is: 189,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,193.19 : 231,918.05 = 137,470.97 : x
  2. Step 2: Convert to fraction form
    168,193.19/231,918.05 = 137,470.97/x
  3. Step 3: Cross multiply
    168,193.19x = 231,918.05 × 137,470.97
  4. Step 4: Simplify right side
    168,193.19x = 31,881,998,604.89
  5. Step 5: Solve for x
    x = 31,881,998,604.89/168,193.19
  6. Step 6: Final answer
    x = 189,555.82

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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.