Home / 215,147.89-296,912.28-119,661.49

Finding the Fourth Proportional to 215,147.89, 296,912.28 and 119,661.49

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Solution

The fourth proportional to 215,147.89, 296,912.28 and 119,661.49 is: 165,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,147.89 : 296,912.28 = 119,661.49 : x
  2. Step 2: Convert to fraction form
    215,147.89/296,912.28 = 119,661.49/x
  3. Step 3: Cross multiply
    215,147.89x = 296,912.28 × 119,661.49
  4. Step 4: Simplify right side
    215,147.89x = 35,528,965,824.10
  5. Step 5: Solve for x
    x = 35,528,965,824.10/215,147.89
  6. Step 6: Final answer
    x = 165,137.41

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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.