Home / 121,664.62-167,885.22-69,983.38

Finding the Fourth Proportional to 121,664.62, 167,885.22 and 69,983.38

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Solution

The fourth proportional to 121,664.62, 167,885.22 and 69,983.38 is: 96,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,664.62 : 167,885.22 = 69,983.38 : x
  2. Step 2: Convert to fraction form
    121,664.62/167,885.22 = 69,983.38/x
  3. Step 3: Cross multiply
    121,664.62x = 167,885.22 × 69,983.38
  4. Step 4: Simplify right side
    121,664.62x = 11,749,175,147.64
  5. Step 5: Solve for x
    x = 11,749,175,147.64/121,664.62
  6. Step 6: Final answer
    x = 96,570.19

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1.5x scale

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.