Home / 131,969.40-197,694.90-122,638.20

Finding the Fourth Proportional to 131,969.40, 197,694.90 and 122,638.20

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Solution

The fourth proportional to 131,969.40, 197,694.90 and 122,638.20 is: 183,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,969.40 : 197,694.90 = 122,638.20 : x
  2. Step 2: Convert to fraction form
    131,969.40/197,694.90 = 122,638.20/x
  3. Step 3: Cross multiply
    131,969.40x = 197,694.90 × 122,638.20
  4. Step 4: Simplify right side
    131,969.40x = 24,244,946,685.18
  5. Step 5: Solve for x
    x = 24,244,946,685.18/131,969.40
  6. Step 6: Final answer
    x = 183,716.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.