Home / 192,135.78-265,131.63-111,537.54

Finding the Fourth Proportional to 192,135.78, 265,131.63 and 111,537.54

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Solution

The fourth proportional to 192,135.78, 265,131.63 and 111,537.54 is: 153,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,135.78 : 265,131.63 = 111,537.54 : x
  2. Step 2: Convert to fraction form
    192,135.78/265,131.63 = 111,537.54/x
  3. Step 3: Cross multiply
    192,135.78x = 265,131.63 × 111,537.54
  4. Step 4: Simplify right side
    192,135.78x = 29,572,129,786.39
  5. Step 5: Solve for x
    x = 29,572,129,786.39/192,135.78
  6. Step 6: Final answer
    x = 153,912.66

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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.