Home / 216,716.50-299,082.03-121,229.62

Finding the Fourth Proportional to 216,716.50, 299,082.03 and 121,229.62

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Solution

The fourth proportional to 216,716.50, 299,082.03 and 121,229.62 is: 167,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,716.50 : 299,082.03 = 121,229.62 : x
  2. Step 2: Convert to fraction form
    216,716.50/299,082.03 = 121,229.62/x
  3. Step 3: Cross multiply
    216,716.50x = 299,082.03 × 121,229.62
  4. Step 4: Simplify right side
    216,716.50x = 36,257,600,845.73
  5. Step 5: Solve for x
    x = 36,257,600,845.73/216,716.50
  6. Step 6: Final answer
    x = 167,304.29

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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.