Home / 121,633.25-167,833.86-67,909.64

Finding the Fourth Proportional to 121,633.25, 167,833.86 and 67,909.64

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Solution

The fourth proportional to 121,633.25, 167,833.86 and 67,909.64 is: 93,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,633.25 : 167,833.86 = 67,909.64 : x
  2. Step 2: Convert to fraction form
    121,633.25/167,833.86 = 67,909.64/x
  3. Step 3: Cross multiply
    121,633.25x = 167,833.86 × 67,909.64
  4. Step 4: Simplify right side
    121,633.25x = 11,397,537,012.41
  5. Step 5: Solve for x
    x = 11,397,537,012.41/121,633.25
  6. Step 6: Final answer
    x = 93,704.12

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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.