Home / 150,821.82-208,110.96-87,147.27

Finding the Fourth Proportional to 150,821.82, 208,110.96 and 87,147.27

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Solution

The fourth proportional to 150,821.82, 208,110.96 and 87,147.27 is: 120,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,821.82 : 208,110.96 = 87,147.27 : x
  2. Step 2: Convert to fraction form
    150,821.82/208,110.96 = 87,147.27/x
  3. Step 3: Cross multiply
    150,821.82x = 208,110.96 × 87,147.27
  4. Step 4: Simplify right side
    150,821.82x = 18,136,302,021.08
  5. Step 5: Solve for x
    x = 18,136,302,021.08/150,821.82
  6. Step 6: Final answer
    x = 120,249.86

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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.