Home / 199,161.36-298,797.48-86,851.53

Finding the Fourth Proportional to 199,161.36, 298,797.48 and 86,851.53

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Solution

The fourth proportional to 199,161.36, 298,797.48 and 86,851.53 is: 130,301.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,161.36 : 298,797.48 = 86,851.53 : x
  2. Step 2: Convert to fraction form
    199,161.36/298,797.48 = 86,851.53/x
  3. Step 3: Cross multiply
    199,161.36x = 298,797.48 × 86,851.53
  4. Step 4: Simplify right side
    199,161.36x = 25,951,018,298.14
  5. Step 5: Solve for x
    x = 25,951,018,298.14/199,161.36
  6. Step 6: Final answer
    x = 130,301.47

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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.