Home / 120,981.38-166,946.39-67,264.41

Finding the Fourth Proportional to 120,981.38, 166,946.39 and 67,264.41

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Solution

The fourth proportional to 120,981.38, 166,946.39 and 67,264.41 is: 92,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.38 : 166,946.39 = 67,264.41 : x
  2. Step 2: Convert to fraction form
    120,981.38/166,946.39 = 67,264.41/x
  3. Step 3: Cross multiply
    120,981.38x = 166,946.39 × 67,264.41
  4. Step 4: Simplify right side
    120,981.38x = 11,229,550,593.14
  5. Step 5: Solve for x
    x = 11,229,550,593.14/120,981.38
  6. Step 6: Final answer
    x = 92,820.49

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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.