Home / 208,927.50-313,515.78-75,818.15

Finding the Fourth Proportional to 208,927.50, 313,515.78 and 75,818.15

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Solution

The fourth proportional to 208,927.50, 313,515.78 and 75,818.15 is: 113,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,927.50 : 313,515.78 = 75,818.15 : x
  2. Step 2: Convert to fraction form
    208,927.50/313,515.78 = 75,818.15/x
  3. Step 3: Cross multiply
    208,927.50x = 313,515.78 × 75,818.15
  4. Step 4: Simplify right side
    208,927.50x = 23,770,184,867.83
  5. Step 5: Solve for x
    x = 23,770,184,867.83/208,927.50
  6. Step 6: Final answer
    x = 113,772.41

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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.