Home / 117,112.26-161,613.82-63,395.90

Finding the Fourth Proportional to 117,112.26, 161,613.82 and 63,395.90

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Solution

The fourth proportional to 117,112.26, 161,613.82 and 63,395.90 is: 87,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.26 : 161,613.82 = 63,395.90 : x
  2. Step 2: Convert to fraction form
    117,112.26/161,613.82 = 63,395.90/x
  3. Step 3: Cross multiply
    117,112.26x = 161,613.82 × 63,395.90
  4. Step 4: Simplify right side
    117,112.26x = 10,245,653,571.34
  5. Step 5: Solve for x
    x = 10,245,653,571.34/117,112.26
  6. Step 6: Final answer
    x = 87,485.75

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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.