Home / 111,204.20-166,806.30-81,752.60

Finding the Fourth Proportional to 111,204.20, 166,806.30 and 81,752.60

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Solution

The fourth proportional to 111,204.20, 166,806.30 and 81,752.60 is: 122,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,204.20 : 166,806.30 = 81,752.60 : x
  2. Step 2: Convert to fraction form
    111,204.20/166,806.30 = 81,752.60/x
  3. Step 3: Cross multiply
    111,204.20x = 166,806.30 × 81,752.60
  4. Step 4: Simplify right side
    111,204.20x = 13,636,848,721.38
  5. Step 5: Solve for x
    x = 13,636,848,721.38/111,204.20
  6. Step 6: Final answer
    x = 122,628.90

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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.