Home / 231,885.20-347,795.40-74,129.60

Finding the Fourth Proportional to 231,885.20, 347,795.40 and 74,129.60

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Solution

The fourth proportional to 231,885.20, 347,795.40 and 74,129.60 is: 111,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,885.20 : 347,795.40 = 74,129.60 : x
  2. Step 2: Convert to fraction form
    231,885.20/347,795.40 = 74,129.60/x
  3. Step 3: Cross multiply
    231,885.20x = 347,795.40 × 74,129.60
  4. Step 4: Simplify right side
    231,885.20x = 25,781,933,883.84
  5. Step 5: Solve for x
    x = 25,781,933,883.84/231,885.20
  6. Step 6: Final answer
    x = 111,184.04

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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.