Home / 217,166.70-325,512.45-76,853.10

Finding the Fourth Proportional to 217,166.70, 325,512.45 and 76,853.10

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Solution

The fourth proportional to 217,166.70, 325,512.45 and 76,853.10 is: 115,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,166.70 : 325,512.45 = 76,853.10 : x
  2. Step 2: Convert to fraction form
    217,166.70/325,512.45 = 76,853.10/x
  3. Step 3: Cross multiply
    217,166.70x = 325,512.45 × 76,853.10
  4. Step 4: Simplify right side
    217,166.70x = 25,016,640,871.10
  5. Step 5: Solve for x
    x = 25,016,640,871.10/217,166.70
  6. Step 6: Final answer
    x = 115,195.57

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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.