Home / 111,245.20-166,867.80-106,579.60

Finding the Fourth Proportional to 111,245.20, 166,867.80 and 106,579.60

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Solution

The fourth proportional to 111,245.20, 166,867.80 and 106,579.60 is: 159,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,245.20 : 166,867.80 = 106,579.60 : x
  2. Step 2: Convert to fraction form
    111,245.20/166,867.80 = 106,579.60/x
  3. Step 3: Cross multiply
    111,245.20x = 166,867.80 × 106,579.60
  4. Step 4: Simplify right side
    111,245.20x = 17,784,703,376.88
  5. Step 5: Solve for x
    x = 17,784,703,376.88/111,245.20
  6. Step 6: Final answer
    x = 159,869.40

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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.