Home / 121,732.13-167,987.22-68,017.59

Finding the Fourth Proportional to 121,732.13, 167,987.22 and 68,017.59

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Solution

The fourth proportional to 121,732.13, 167,987.22 and 68,017.59 is: 93,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,732.13 : 167,987.22 = 68,017.59 : x
  2. Step 2: Convert to fraction form
    121,732.13/167,987.22 = 68,017.59/x
  3. Step 3: Cross multiply
    121,732.13x = 167,987.22 × 68,017.59
  4. Step 4: Simplify right side
    121,732.13x = 11,426,085,600.13
  5. Step 5: Solve for x
    x = 11,426,085,600.13/121,732.13
  6. Step 6: Final answer
    x = 93,862.53

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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.