Home / 217,900.20-326,869.14-60,128.66

Finding the Fourth Proportional to 217,900.20, 326,869.14 and 60,128.66

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Solution

The fourth proportional to 217,900.20, 326,869.14 and 60,128.66 is: 90,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,900.20 : 326,869.14 = 60,128.66 : x
  2. Step 2: Convert to fraction form
    217,900.20/326,869.14 = 60,128.66/x
  3. Step 3: Cross multiply
    217,900.20x = 326,869.14 × 60,128.66
  4. Step 4: Simplify right side
    217,900.20x = 19,654,203,383.55
  5. Step 5: Solve for x
    x = 19,654,203,383.55/217,900.20
  6. Step 6: Final answer
    x = 90,198.19

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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.