Home / 117,111.26-161,612.44-63,394.90

Finding the Fourth Proportional to 117,111.26, 161,612.44 and 63,394.90

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Solution

The fourth proportional to 117,111.26, 161,612.44 and 63,394.90 is: 87,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,111.26 : 161,612.44 = 63,394.90 : x
  2. Step 2: Convert to fraction form
    117,111.26/161,612.44 = 63,394.90/x
  3. Step 3: Cross multiply
    117,111.26x = 161,612.44 × 63,394.90
  4. Step 4: Simplify right side
    117,111.26x = 10,245,403,910.04
  5. Step 5: Solve for x
    x = 10,245,403,910.04/117,111.26
  6. Step 6: Final answer
    x = 87,484.36

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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.