Home / 197,978.94-273,190.48-121,501.26

Finding the Fourth Proportional to 197,978.94, 273,190.48 and 121,501.26

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Solution

The fourth proportional to 197,978.94, 273,190.48 and 121,501.26 is: 167,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,978.94 : 273,190.48 = 121,501.26 : x
  2. Step 2: Convert to fraction form
    197,978.94/273,190.48 = 121,501.26/x
  3. Step 3: Cross multiply
    197,978.94x = 273,190.48 × 121,501.26
  4. Step 4: Simplify right side
    197,978.94x = 33,192,987,236.25
  5. Step 5: Solve for x
    x = 33,192,987,236.25/197,978.94
  6. Step 6: Final answer
    x = 167,659.18

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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.