Home / 188,173.53-259,561.34-111,638.44

Finding the Fourth Proportional to 188,173.53, 259,561.34 and 111,638.44

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Solution

The fourth proportional to 188,173.53, 259,561.34 and 111,638.44 is: 153,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,173.53 : 259,561.34 = 111,638.44 : x
  2. Step 2: Convert to fraction form
    188,173.53/259,561.34 = 111,638.44/x
  3. Step 3: Cross multiply
    188,173.53x = 259,561.34 × 111,638.44
  4. Step 4: Simplify right side
    188,173.53x = 28,977,023,081.91
  5. Step 5: Solve for x
    x = 28,977,023,081.91/188,173.53
  6. Step 6: Final answer
    x = 153,990.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.