Home / 117,161.28-161,682.66-63,446.36

Finding the Fourth Proportional to 117,161.28, 161,682.66 and 63,446.36

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Solution

The fourth proportional to 117,161.28, 161,682.66 and 63,446.36 is: 87,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,161.28 : 161,682.66 = 63,446.36 : x
  2. Step 2: Convert to fraction form
    117,161.28/161,682.66 = 63,446.36/x
  3. Step 3: Cross multiply
    117,161.28x = 161,682.66 × 63,446.36
  4. Step 4: Simplify right side
    117,161.28x = 10,258,175,689.30
  5. Step 5: Solve for x
    x = 10,258,175,689.30/117,161.28
  6. Step 6: Final answer
    x = 87,556.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.