Home / 214,981.40-321,857.70-132,037.40

Finding the Fourth Proportional to 214,981.40, 321,857.70 and 132,037.40

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Solution

The fourth proportional to 214,981.40, 321,857.70 and 132,037.40 is: 197,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,981.40 : 321,857.70 = 132,037.40 : x
  2. Step 2: Convert to fraction form
    214,981.40/321,857.70 = 132,037.40/x
  3. Step 3: Cross multiply
    214,981.40x = 321,857.70 × 132,037.40
  4. Step 4: Simplify right side
    214,981.40x = 42,497,253,877.98
  5. Step 5: Solve for x
    x = 42,497,253,877.98/214,981.40
  6. Step 6: Final answer
    x = 197,678.75

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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.