Home / 110,738.95-152,766.62-72,481.66

Finding the Fourth Proportional to 110,738.95, 152,766.62 and 72,481.66

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Solution

The fourth proportional to 110,738.95, 152,766.62 and 72,481.66 is: 99,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,738.95 : 152,766.62 = 72,481.66 : x
  2. Step 2: Convert to fraction form
    110,738.95/152,766.62 = 72,481.66/x
  3. Step 3: Cross multiply
    110,738.95x = 152,766.62 × 72,481.66
  4. Step 4: Simplify right side
    110,738.95x = 11,072,777,847.78
  5. Step 5: Solve for x
    x = 11,072,777,847.78/110,738.95
  6. Step 6: Final answer
    x = 99,989.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.