Home / 213,845.80-320,423.10-134,818.60

Finding the Fourth Proportional to 213,845.80, 320,423.10 and 134,818.60

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Solution

The fourth proportional to 213,845.80, 320,423.10 and 134,818.60 is: 202,010.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,845.80 : 320,423.10 = 134,818.60 : x
  2. Step 2: Convert to fraction form
    213,845.80/320,423.10 = 134,818.60/x
  3. Step 3: Cross multiply
    213,845.80x = 320,423.10 × 134,818.60
  4. Step 4: Simplify right side
    213,845.80x = 43,198,993,749.66
  5. Step 5: Solve for x
    x = 43,198,993,749.66/213,845.80
  6. Step 6: Final answer
    x = 202,010.02

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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.