Home / 150,126.78-207,174.85-82,144.20

Finding the Fourth Proportional to 150,126.78, 207,174.85 and 82,144.20

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Solution

The fourth proportional to 150,126.78, 207,174.85 and 82,144.20 is: 113,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,126.78 : 207,174.85 = 82,144.20 : x
  2. Step 2: Convert to fraction form
    150,126.78/207,174.85 = 82,144.20/x
  3. Step 3: Cross multiply
    150,126.78x = 207,174.85 × 82,144.20
  4. Step 4: Simplify right side
    150,126.78x = 17,018,212,108.01
  5. Step 5: Solve for x
    x = 17,018,212,108.01/150,126.78
  6. Step 6: Final answer
    x = 113,358.94

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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.