Home / 117,786.38-162,517.73-68,720.36

Finding the Fourth Proportional to 117,786.38, 162,517.73 and 68,720.36

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Solution

The fourth proportional to 117,786.38, 162,517.73 and 68,720.36 is: 94,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,786.38 : 162,517.73 = 68,720.36 : x
  2. Step 2: Convert to fraction form
    117,786.38/162,517.73 = 68,720.36/x
  3. Step 3: Cross multiply
    117,786.38x = 162,517.73 × 68,720.36
  4. Step 4: Simplify right side
    117,786.38x = 11,168,275,755.79
  5. Step 5: Solve for x
    x = 11,168,275,755.79/117,786.38
  6. Step 6: Final answer
    x = 94,818.06

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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.