Home / 231,720.40-347,804.96-111,861.52

Finding the Fourth Proportional to 231,720.40, 347,804.96 and 111,861.52

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Solution

The fourth proportional to 231,720.40, 347,804.96 and 111,861.52 is: 167,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,720.40 : 347,804.96 = 111,861.52 : x
  2. Step 2: Convert to fraction form
    231,720.40/347,804.96 = 111,861.52/x
  3. Step 3: Cross multiply
    231,720.40x = 347,804.96 × 111,861.52
  4. Step 4: Simplify right side
    231,720.40x = 38,905,991,489.14
  5. Step 5: Solve for x
    x = 38,905,991,489.14/231,720.40
  6. Step 6: Final answer
    x = 167,900.59

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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.