Home / 121,293.66-167,383.26-66,103.75

Finding the Fourth Proportional to 121,293.66, 167,383.26 and 66,103.75

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Solution

The fourth proportional to 121,293.66, 167,383.26 and 66,103.75 is: 91,222.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,293.66 : 167,383.26 = 66,103.75 : x
  2. Step 2: Convert to fraction form
    121,293.66/167,383.26 = 66,103.75/x
  3. Step 3: Cross multiply
    121,293.66x = 167,383.26 × 66,103.75
  4. Step 4: Simplify right side
    121,293.66x = 11,064,660,440.92
  5. Step 5: Solve for x
    x = 11,064,660,440.92/121,293.66
  6. Step 6: Final answer
    x = 91,222.08

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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.