Home / 131,817.06-197,754.78-72,622.26

Finding the Fourth Proportional to 131,817.06, 197,754.78 and 72,622.26

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Solution

The fourth proportional to 131,817.06, 197,754.78 and 72,622.26 is: 108,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,817.06 : 197,754.78 = 72,622.26 : x
  2. Step 2: Convert to fraction form
    131,817.06/197,754.78 = 72,622.26/x
  3. Step 3: Cross multiply
    131,817.06x = 197,754.78 × 72,622.26
  4. Step 4: Simplify right side
    131,817.06x = 14,361,399,049.40
  5. Step 5: Solve for x
    x = 14,361,399,049.40/131,817.06
  6. Step 6: Final answer
    x = 108,949.47

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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.