Home / 219,851.22-329,553.95-86,825.19

Finding the Fourth Proportional to 219,851.22, 329,553.95 and 86,825.19

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Solution

The fourth proportional to 219,851.22, 329,553.95 and 86,825.19 is: 130,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,851.22 : 329,553.95 = 86,825.19 : x
  2. Step 2: Convert to fraction form
    219,851.22/329,553.95 = 86,825.19/x
  3. Step 3: Cross multiply
    219,851.22x = 329,553.95 × 86,825.19
  4. Step 4: Simplify right side
    219,851.22x = 28,613,583,889.87
  5. Step 5: Solve for x
    x = 28,613,583,889.87/219,851.22
  6. Step 6: Final answer
    x = 130,149.76

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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.