Home / 188,210.69-259,616.64-111,679.36

Finding the Fourth Proportional to 188,210.69, 259,616.64 and 111,679.36

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Solution

The fourth proportional to 188,210.69, 259,616.64 and 111,679.36 is: 154,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,210.69 : 259,616.64 = 111,679.36 : x
  2. Step 2: Convert to fraction form
    188,210.69/259,616.64 = 111,679.36/x
  3. Step 3: Cross multiply
    188,210.69x = 259,616.64 × 111,679.36
  4. Step 4: Simplify right side
    188,210.69x = 28,993,819,970.31
  5. Step 5: Solve for x
    x = 28,993,819,970.31/188,210.69
  6. Step 6: Final answer
    x = 154,049.81

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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.