Home / 208,985.32-313,523.34-68,738.68

Finding the Fourth Proportional to 208,985.32, 313,523.34 and 68,738.68

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Solution

The fourth proportional to 208,985.32, 313,523.34 and 68,738.68 is: 103,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,985.32 : 313,523.34 = 68,738.68 : x
  2. Step 2: Convert to fraction form
    208,985.32/313,523.34 = 68,738.68/x
  3. Step 3: Cross multiply
    208,985.32x = 313,523.34 × 68,738.68
  4. Step 4: Simplify right side
    208,985.32x = 21,551,180,540.79
  5. Step 5: Solve for x
    x = 21,551,180,540.79/208,985.32
  6. Step 6: Final answer
    x = 103,122.94

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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.