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Finding the Fourth Proportional to 121,001.46, 166,981.37 and 67,283.34

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Solution

The fourth proportional to 121,001.46, 166,981.37 and 67,283.34 is: 92,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,001.46 : 166,981.37 = 67,283.34 : x
  2. Step 2: Convert to fraction form
    121,001.46/166,981.37 = 67,283.34/x
  3. Step 3: Cross multiply
    121,001.46x = 166,981.37 × 67,283.34
  4. Step 4: Simplify right side
    121,001.46x = 11,235,063,954.96
  5. Step 5: Solve for x
    x = 11,235,063,954.96/121,001.46
  6. Step 6: Final answer
    x = 92,850.65

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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.