Home / 213,975.68-321,072.80-142,946.88

Finding the Fourth Proportional to 213,975.68, 321,072.80 and 142,946.88

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Solution

The fourth proportional to 213,975.68, 321,072.80 and 142,946.88 is: 214,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,975.68 : 321,072.80 = 142,946.88 : x
  2. Step 2: Convert to fraction form
    213,975.68/321,072.80 = 142,946.88/x
  3. Step 3: Cross multiply
    213,975.68x = 321,072.80 × 142,946.88
  4. Step 4: Simplify right side
    213,975.68x = 45,896,355,012.86
  5. Step 5: Solve for x
    x = 45,896,355,012.86/213,975.68
  6. Step 6: Final answer
    x = 214,493.32

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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.