Home / 217,845.85-326,824.21-127,964.57

Finding the Fourth Proportional to 217,845.85, 326,824.21 and 127,964.57

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Solution

The fourth proportional to 217,845.85, 326,824.21 and 127,964.57 is: 191,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,845.85 : 326,824.21 = 127,964.57 : x
  2. Step 2: Convert to fraction form
    217,845.85/326,824.21 = 127,964.57/x
  3. Step 3: Cross multiply
    217,845.85x = 326,824.21 × 127,964.57
  4. Step 4: Simplify right side
    217,845.85x = 41,821,919,862.46
  5. Step 5: Solve for x
    x = 41,821,919,862.46/217,845.85
  6. Step 6: Final answer
    x = 191,979.42

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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.