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Finding the Fourth Proportional to 121,504.57, 167,684.37 and 67,790.73

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Solution

The fourth proportional to 121,504.57, 167,684.37 and 67,790.73 is: 93,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,504.57 : 167,684.37 = 67,790.73 : x
  2. Step 2: Convert to fraction form
    121,504.57/167,684.37 = 67,790.73/x
  3. Step 3: Cross multiply
    121,504.57x = 167,684.37 × 67,790.73
  4. Step 4: Simplify right side
    121,504.57x = 11,367,445,851.89
  5. Step 5: Solve for x
    x = 11,367,445,851.89/121,504.57
  6. Step 6: Final answer
    x = 93,555.71

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1.5x scale

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.