Home / 193,284.14-289,856.72-66,890.05

Finding the Fourth Proportional to 193,284.14, 289,856.72 and 66,890.05

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Solution

The fourth proportional to 193,284.14, 289,856.72 and 66,890.05 is: 100,311.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,284.14 : 289,856.72 = 66,890.05 : x
  2. Step 2: Convert to fraction form
    193,284.14/289,856.72 = 66,890.05/x
  3. Step 3: Cross multiply
    193,284.14x = 289,856.72 × 66,890.05
  4. Step 4: Simplify right side
    193,284.14x = 19,388,529,936.22
  5. Step 5: Solve for x
    x = 19,388,529,936.22/193,284.14
  6. Step 6: Final answer
    x = 100,311.03

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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.