Home / 188,218.53-259,627.55-111,687.30

Finding the Fourth Proportional to 188,218.53, 259,627.55 and 111,687.30

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Solution

The fourth proportional to 188,218.53, 259,627.55 and 111,687.30 is: 154,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,218.53 : 259,627.55 = 111,687.30 : x
  2. Step 2: Convert to fraction form
    188,218.53/259,627.55 = 111,687.30/x
  3. Step 3: Cross multiply
    188,218.53x = 259,627.55 × 111,687.30
  4. Step 4: Simplify right side
    188,218.53x = 28,997,099,506.68
  5. Step 5: Solve for x
    x = 28,997,099,506.68/188,218.53
  6. Step 6: Final answer
    x = 154,060.81

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1.5x scale

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.