Home / 186,869.43-280,137.49-68,513.24

Finding the Fourth Proportional to 186,869.43, 280,137.49 and 68,513.24

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Solution

The fourth proportional to 186,869.43, 280,137.49 and 68,513.24 is: 102,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,869.43 : 280,137.49 = 68,513.24 : x
  2. Step 2: Convert to fraction form
    186,869.43/280,137.49 = 68,513.24/x
  3. Step 3: Cross multiply
    186,869.43x = 280,137.49 × 68,513.24
  4. Step 4: Simplify right side
    186,869.43x = 19,193,127,614.43
  5. Step 5: Solve for x
    x = 19,193,127,614.43/186,869.43
  6. Step 6: Final answer
    x = 102,708.76

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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.