Home / 188,217.28-259,625.82-111,686.05

Finding the Fourth Proportional to 188,217.28, 259,625.82 and 111,686.05

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Solution

The fourth proportional to 188,217.28, 259,625.82 and 111,686.05 is: 154,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,217.28 : 259,625.82 = 111,686.05 : x
  2. Step 2: Convert to fraction form
    188,217.28/259,625.82 = 111,686.05/x
  3. Step 3: Cross multiply
    188,217.28x = 259,625.82 × 111,686.05
  4. Step 4: Simplify right side
    188,217.28x = 28,996,582,313.81
  5. Step 5: Solve for x
    x = 28,996,582,313.81/188,217.28
  6. Step 6: Final answer
    x = 154,059.09

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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.