Home / 117,221.91-161,766.01-63,508.38

Finding the Fourth Proportional to 117,221.91, 161,766.01 and 63,508.38

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Solution

The fourth proportional to 117,221.91, 161,766.01 and 63,508.38 is: 87,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221.91 : 161,766.01 = 63,508.38 : x
  2. Step 2: Convert to fraction form
    117,221.91/161,766.01 = 63,508.38/x
  3. Step 3: Cross multiply
    117,221.91x = 161,766.01 × 63,508.38
  4. Step 4: Simplify right side
    117,221.91x = 10,273,497,234.16
  5. Step 5: Solve for x
    x = 10,273,497,234.16/117,221.91
  6. Step 6: Final answer
    x = 87,641.44

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1.5x scale

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.