Home / 121,097.09-167,120.55-67,383.28

Finding the Fourth Proportional to 121,097.09, 167,120.55 and 67,383.28

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Solution

The fourth proportional to 121,097.09, 167,120.55 and 67,383.28 is: 92,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,097.09 : 167,120.55 = 67,383.28 : x
  2. Step 2: Convert to fraction form
    121,097.09/167,120.55 = 67,383.28/x
  3. Step 3: Cross multiply
    121,097.09x = 167,120.55 × 67,383.28
  4. Step 4: Simplify right side
    121,097.09x = 11,261,130,083.25
  5. Step 5: Solve for x
    x = 11,261,130,083.25/121,097.09
  6. Step 6: Final answer
    x = 92,992.57

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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.