Home / 117,331.06-161,917.59-63,615.61

Finding the Fourth Proportional to 117,331.06, 161,917.59 and 63,615.61

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Solution

The fourth proportional to 117,331.06, 161,917.59 and 63,615.61 is: 87,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.06 : 161,917.59 = 63,615.61 : x
  2. Step 2: Convert to fraction form
    117,331.06/161,917.59 = 63,615.61/x
  3. Step 3: Cross multiply
    117,331.06x = 161,917.59 × 63,615.61
  4. Step 4: Simplify right side
    117,331.06x = 10,300,486,257.58
  5. Step 5: Solve for x
    x = 10,300,486,257.58/117,331.06
  6. Step 6: Final answer
    x = 87,789.94

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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.