Home / 121,149.74-167,186.66-67,433.60

Finding the Fourth Proportional to 121,149.74, 167,186.66 and 67,433.60

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Solution

The fourth proportional to 121,149.74, 167,186.66 and 67,433.60 is: 93,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,149.74 : 167,186.66 = 67,433.60 : x
  2. Step 2: Convert to fraction form
    121,149.74/167,186.66 = 67,433.60/x
  3. Step 3: Cross multiply
    121,149.74x = 167,186.66 × 67,433.60
  4. Step 4: Simplify right side
    121,149.74x = 11,273,998,436.57
  5. Step 5: Solve for x
    x = 11,273,998,436.57/121,149.74
  6. Step 6: Final answer
    x = 93,058.38

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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.