Home / 121,175.73-167,213.97-75,851.64

Finding the Fourth Proportional to 121,175.73, 167,213.97 and 75,851.64

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Solution

The fourth proportional to 121,175.73, 167,213.97 and 75,851.64 is: 104,669.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,175.73 : 167,213.97 = 75,851.64 : x
  2. Step 2: Convert to fraction form
    121,175.73/167,213.97 = 75,851.64/x
  3. Step 3: Cross multiply
    121,175.73x = 167,213.97 × 75,851.64
  4. Step 4: Simplify right side
    121,175.73x = 12,683,453,855.41
  5. Step 5: Solve for x
    x = 12,683,453,855.41/121,175.73
  6. Step 6: Final answer
    x = 104,669.92

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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.