Home / 208,784.85-313,177.20-75,664.86

Finding the Fourth Proportional to 208,784.85, 313,177.20 and 75,664.86

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Solution

The fourth proportional to 208,784.85, 313,177.20 and 75,664.86 is: 113,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,784.85 : 313,177.20 = 75,664.86 : x
  2. Step 2: Convert to fraction form
    208,784.85/313,177.20 = 75,664.86/x
  3. Step 3: Cross multiply
    208,784.85x = 313,177.20 × 75,664.86
  4. Step 4: Simplify right side
    208,784.85x = 23,696,508,993.19
  5. Step 5: Solve for x
    x = 23,696,508,993.19/208,784.85
  6. Step 6: Final answer
    x = 113,497.26

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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.