Home / 231,814.40-347,635.20-81,996.80

Finding the Fourth Proportional to 231,814.40, 347,635.20 and 81,996.80

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Solution

The fourth proportional to 231,814.40, 347,635.20 and 81,996.80 is: 122,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,814.40 : 347,635.20 = 81,996.80 : x
  2. Step 2: Convert to fraction form
    231,814.40/347,635.20 = 81,996.80/x
  3. Step 3: Cross multiply
    231,814.40x = 347,635.20 × 81,996.80
  4. Step 4: Simplify right side
    231,814.40x = 28,504,973,967.36
  5. Step 5: Solve for x
    x = 28,504,973,967.36/231,814.40
  6. Step 6: Final answer
    x = 122,964.64

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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.