Home / 121,114.41-167,136.69-67,398.51

Finding the Fourth Proportional to 121,114.41, 167,136.69 and 67,398.51

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Solution

The fourth proportional to 121,114.41, 167,136.69 and 67,398.51 is: 93,009.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,114.41 : 167,136.69 = 67,398.51 : x
  2. Step 2: Convert to fraction form
    121,114.41/167,136.69 = 67,398.51/x
  3. Step 3: Cross multiply
    121,114.41x = 167,136.69 × 67,398.51
  4. Step 4: Simplify right side
    121,114.41x = 11,264,763,872.33
  5. Step 5: Solve for x
    x = 11,264,763,872.33/121,114.41
  6. Step 6: Final answer
    x = 93,009.28

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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.