Home / 199,035.78-298,221.03-86,547.44

Finding the Fourth Proportional to 199,035.78, 298,221.03 and 86,547.44

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Solution

The fourth proportional to 199,035.78, 298,221.03 and 86,547.44 is: 129,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,035.78 : 298,221.03 = 86,547.44 : x
  2. Step 2: Convert to fraction form
    199,035.78/298,221.03 = 86,547.44/x
  3. Step 3: Cross multiply
    199,035.78x = 298,221.03 × 86,547.44
  4. Step 4: Simplify right side
    199,035.78x = 25,810,265,209.56
  5. Step 5: Solve for x
    x = 25,810,265,209.56/199,035.78
  6. Step 6: Final answer
    x = 129,676.51

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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.