Home / 259,620.48-389,091.36-133,153.92

Finding the Fourth Proportional to 259,620.48, 389,091.36 and 133,153.92

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Solution

The fourth proportional to 259,620.48, 389,091.36 and 133,153.92 is: 199,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,620.48 : 389,091.36 = 133,153.92 : x
  2. Step 2: Convert to fraction form
    259,620.48/389,091.36 = 133,153.92/x
  3. Step 3: Cross multiply
    259,620.48x = 389,091.36 × 133,153.92
  4. Step 4: Simplify right side
    259,620.48x = 51,809,039,822.13
  5. Step 5: Solve for x
    x = 51,809,039,822.13/259,620.48
  6. Step 6: Final answer
    x = 199,556.83

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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.