Home / 135,618.07-203,399.31-51,349.16

Finding the Fourth Proportional to 135,618.07, 203,399.31 and 51,349.16

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Solution

The fourth proportional to 135,618.07, 203,399.31 and 51,349.16 is: 77,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,618.07 : 203,399.31 = 51,349.16 : x
  2. Step 2: Convert to fraction form
    135,618.07/203,399.31 = 51,349.16/x
  3. Step 3: Cross multiply
    135,618.07x = 203,399.31 × 51,349.16
  4. Step 4: Simplify right side
    135,618.07x = 10,444,383,456.33
  5. Step 5: Solve for x
    x = 10,444,383,456.33/135,618.07
  6. Step 6: Final answer
    x = 77,013.21

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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.