Home / 117,229.05-161,766.45-66,246.21

Finding the Fourth Proportional to 117,229.05, 161,766.45 and 66,246.21

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Solution

The fourth proportional to 117,229.05, 161,766.45 and 66,246.21 is: 91,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,229.05 : 161,766.45 = 66,246.21 : x
  2. Step 2: Convert to fraction form
    117,229.05/161,766.45 = 66,246.21/x
  3. Step 3: Cross multiply
    117,229.05x = 161,766.45 × 66,246.21
  4. Step 4: Simplify right side
    117,229.05x = 10,716,414,217.65
  5. Step 5: Solve for x
    x = 10,716,414,217.65/117,229.05
  6. Step 6: Final answer
    x = 91,414.32

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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.