Home / 121,679.26-167,915.61-67,965.04

Finding the Fourth Proportional to 121,679.26, 167,915.61 and 67,965.04

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Solution

The fourth proportional to 121,679.26, 167,915.61 and 67,965.04 is: 93,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,679.26 : 167,915.61 = 67,965.04 : x
  2. Step 2: Convert to fraction form
    121,679.26/167,915.61 = 67,965.04/x
  3. Step 3: Cross multiply
    121,679.26x = 167,915.61 × 67,965.04
  4. Step 4: Simplify right side
    121,679.26x = 11,412,391,150.27
  5. Step 5: Solve for x
    x = 11,412,391,150.27/121,679.26
  6. Step 6: Final answer
    x = 93,790.77

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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.