Home / 186,299.44-278,590.75-138,358.57

Finding the Fourth Proportional to 186,299.44, 278,590.75 and 138,358.57

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Solution

The fourth proportional to 186,299.44, 278,590.75 and 138,358.57 is: 206,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,299.44 : 278,590.75 = 138,358.57 : x
  2. Step 2: Convert to fraction form
    186,299.44/278,590.75 = 138,358.57/x
  3. Step 3: Cross multiply
    186,299.44x = 278,590.75 × 138,358.57
  4. Step 4: Simplify right side
    186,299.44x = 38,545,417,785.23
  5. Step 5: Solve for x
    x = 38,545,417,785.23/186,299.44
  6. Step 6: Final answer
    x = 206,900.34

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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.