Home / 203,511.14-305,313.23-70,391.28

Finding the Fourth Proportional to 203,511.14, 305,313.23 and 70,391.28

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Solution

The fourth proportional to 203,511.14, 305,313.23 and 70,391.28 is: 105,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,511.14 : 305,313.23 = 70,391.28 : x
  2. Step 2: Convert to fraction form
    203,511.14/305,313.23 = 70,391.28/x
  3. Step 3: Cross multiply
    203,511.14x = 305,313.23 × 70,391.28
  4. Step 4: Simplify right side
    203,511.14x = 21,491,388,708.68
  5. Step 5: Solve for x
    x = 21,491,388,708.68/203,511.14
  6. Step 6: Final answer
    x = 105,603.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.