Home / 150,398.78-225,155.30-111,131.19

Finding the Fourth Proportional to 150,398.78, 225,155.30 and 111,131.19

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Solution

The fourth proportional to 150,398.78, 225,155.30 and 111,131.19 is: 166,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,398.78 : 225,155.30 = 111,131.19 : x
  2. Step 2: Convert to fraction form
    150,398.78/225,155.30 = 111,131.19/x
  3. Step 3: Cross multiply
    150,398.78x = 225,155.30 × 111,131.19
  4. Step 4: Simplify right side
    150,398.78x = 25,021,775,868.15
  5. Step 5: Solve for x
    x = 25,021,775,868.15/150,398.78
  6. Step 6: Final answer
    x = 166,369.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.