Home / 214,621.84-321,981.36-114,729.40

Finding the Fourth Proportional to 214,621.84, 321,981.36 and 114,729.40

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Solution

The fourth proportional to 214,621.84, 321,981.36 and 114,729.40 is: 172,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,621.84 : 321,981.36 = 114,729.40 : x
  2. Step 2: Convert to fraction form
    214,621.84/321,981.36 = 114,729.40/x
  3. Step 3: Cross multiply
    214,621.84x = 321,981.36 × 114,729.40
  4. Step 4: Simplify right side
    214,621.84x = 36,940,728,243.98
  5. Step 5: Solve for x
    x = 36,940,728,243.98/214,621.84
  6. Step 6: Final answer
    x = 172,120.08

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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.