Home / 121,584.51-167,757.08-71,273.79

Finding the Fourth Proportional to 121,584.51, 167,757.08 and 71,273.79

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Solution

The fourth proportional to 121,584.51, 167,757.08 and 71,273.79 is: 98,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,584.51 : 167,757.08 = 71,273.79 : x
  2. Step 2: Convert to fraction form
    121,584.51/167,757.08 = 71,273.79/x
  3. Step 3: Cross multiply
    121,584.51x = 167,757.08 × 71,273.79
  4. Step 4: Simplify right side
    121,584.51x = 11,956,682,534.56
  5. Step 5: Solve for x
    x = 11,956,682,534.56/121,584.51
  6. Step 6: Final answer
    x = 98,340.51

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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.