Home / 231,889.20-347,801.40-74,133.60

Finding the Fourth Proportional to 231,889.20, 347,801.40 and 74,133.60

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Solution

The fourth proportional to 231,889.20, 347,801.40 and 74,133.60 is: 111,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,889.20 : 347,801.40 = 74,133.60 : x
  2. Step 2: Convert to fraction form
    231,889.20/347,801.40 = 74,133.60/x
  3. Step 3: Cross multiply
    231,889.20x = 347,801.40 × 74,133.60
  4. Step 4: Simplify right side
    231,889.20x = 25,783,769,867.04
  5. Step 5: Solve for x
    x = 25,783,769,867.04/231,889.20
  6. Step 6: Final answer
    x = 111,190.04

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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.