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Finding the Fourth Proportional to 121,662.81, 167,891.26 and 67,946.25

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Solution

The fourth proportional to 121,662.81, 167,891.26 and 67,946.25 is: 93,763.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,662.81 : 167,891.26 = 67,946.25 : x
  2. Step 2: Convert to fraction form
    121,662.81/167,891.26 = 67,946.25/x
  3. Step 3: Cross multiply
    121,662.81x = 167,891.26 × 67,946.25
  4. Step 4: Simplify right side
    121,662.81x = 11,407,581,524.78
  5. Step 5: Solve for x
    x = 11,407,581,524.78/121,662.81
  6. Step 6: Final answer
    x = 93,763.92

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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.