Home / 214,631.10-321,946.65-135,834.30

Finding the Fourth Proportional to 214,631.10, 321,946.65 and 135,834.30

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Solution

The fourth proportional to 214,631.10, 321,946.65 and 135,834.30 is: 203,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,631.10 : 321,946.65 = 135,834.30 : x
  2. Step 2: Convert to fraction form
    214,631.10/321,946.65 = 135,834.30/x
  3. Step 3: Cross multiply
    214,631.10x = 321,946.65 × 135,834.30
  4. Step 4: Simplify right side
    214,631.10x = 43,731,397,840.10
  5. Step 5: Solve for x
    x = 43,731,397,840.10/214,631.10
  6. Step 6: Final answer
    x = 203,751.45

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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.