Home / 190,889.78-263,431.05-104,856.71

Finding the Fourth Proportional to 190,889.78, 263,431.05 and 104,856.71

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Solution

The fourth proportional to 190,889.78, 263,431.05 and 104,856.71 is: 144,703.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,889.78 : 263,431.05 = 104,856.71 : x
  2. Step 2: Convert to fraction form
    190,889.78/263,431.05 = 104,856.71/x
  3. Step 3: Cross multiply
    190,889.78x = 263,431.05 × 104,856.71
  4. Step 4: Simplify right side
    190,889.78x = 27,622,511,897.69
  5. Step 5: Solve for x
    x = 27,622,511,897.69/190,889.78
  6. Step 6: Final answer
    x = 144,703.99

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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.