Home / 150,121.64-207,166.09-82,137.82

Finding the Fourth Proportional to 150,121.64, 207,166.09 and 82,137.82

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Solution

The fourth proportional to 150,121.64, 207,166.09 and 82,137.82 is: 113,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,121.64 : 207,166.09 = 82,137.82 : x
  2. Step 2: Convert to fraction form
    150,121.64/207,166.09 = 82,137.82/x
  3. Step 3: Cross multiply
    150,121.64x = 207,166.09 × 82,137.82
  4. Step 4: Simplify right side
    150,121.64x = 17,016,171,010.52
  5. Step 5: Solve for x
    x = 17,016,171,010.52/150,121.64
  6. Step 6: Final answer
    x = 113,349.22

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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.