Home / 117,961.90-162,789.27-64,246.88

Finding the Fourth Proportional to 117,961.90, 162,789.27 and 64,246.88

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Solution

The fourth proportional to 117,961.90, 162,789.27 and 64,246.88 is: 88,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.90 : 162,789.27 = 64,246.88 : x
  2. Step 2: Convert to fraction form
    117,961.90/162,789.27 = 64,246.88/x
  3. Step 3: Cross multiply
    117,961.90x = 162,789.27 × 64,246.88
  4. Step 4: Simplify right side
    117,961.90x = 10,458,703,101.95
  5. Step 5: Solve for x
    x = 10,458,703,101.95/117,961.90
  6. Step 6: Final answer
    x = 88,661.71

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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.