Home / 193,284.25-289,856.89-66,890.19

Finding the Fourth Proportional to 193,284.25, 289,856.89 and 66,890.19

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Solution

The fourth proportional to 193,284.25, 289,856.89 and 66,890.19 is: 100,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,284.25 : 289,856.89 = 66,890.19 : x
  2. Step 2: Convert to fraction form
    193,284.25/289,856.89 = 66,890.19/x
  3. Step 3: Cross multiply
    193,284.25x = 289,856.89 × 66,890.19
  4. Step 4: Simplify right side
    193,284.25x = 19,388,583,301.94
  5. Step 5: Solve for x
    x = 19,388,583,301.94/193,284.25
  6. Step 6: Final answer
    x = 100,311.24

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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.