Home / 110,939.40-166,311.90-66,583.80

Finding the Fourth Proportional to 110,939.40, 166,311.90 and 66,583.80

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Solution

The fourth proportional to 110,939.40, 166,311.90 and 66,583.80 is: 99,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,939.40 : 166,311.90 = 66,583.80 : x
  2. Step 2: Convert to fraction form
    110,939.40/166,311.90 = 66,583.80/x
  3. Step 3: Cross multiply
    110,939.40x = 166,311.90 × 66,583.80
  4. Step 4: Simplify right side
    110,939.40x = 11,073,678,287.22
  5. Step 5: Solve for x
    x = 11,073,678,287.22/110,939.40
  6. Step 6: Final answer
    x = 99,817.36

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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.