Home / 208,940.76-313,535.64-75,831.40

Finding the Fourth Proportional to 208,940.76, 313,535.64 and 75,831.40

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Solution

The fourth proportional to 208,940.76, 313,535.64 and 75,831.40 is: 113,792.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,940.76 : 313,535.64 = 75,831.40 : x
  2. Step 2: Convert to fraction form
    208,940.76/313,535.64 = 75,831.40/x
  3. Step 3: Cross multiply
    208,940.76x = 313,535.64 × 75,831.40
  4. Step 4: Simplify right side
    208,940.76x = 23,775,846,531.10
  5. Step 5: Solve for x
    x = 23,775,846,531.10/208,940.76
  6. Step 6: Final answer
    x = 113,792.29

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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.