Home / 188,213.95-259,621.12-111,682.61

Finding the Fourth Proportional to 188,213.95, 259,621.12 and 111,682.61

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Solution

The fourth proportional to 188,213.95, 259,621.12 and 111,682.61 is: 154,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,213.95 : 259,621.12 = 111,682.61 : x
  2. Step 2: Convert to fraction form
    188,213.95/259,621.12 = 111,682.61/x
  3. Step 3: Cross multiply
    188,213.95x = 259,621.12 × 111,682.61
  4. Step 4: Simplify right side
    188,213.95x = 28,995,163,734.31
  5. Step 5: Solve for x
    x = 28,995,163,734.31/188,213.95
  6. Step 6: Final answer
    x = 154,054.28

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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.