Home / 213,630.48-320,467.38-80,622.52

Finding the Fourth Proportional to 213,630.48, 320,467.38 and 80,622.52

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Solution

The fourth proportional to 213,630.48, 320,467.38 and 80,622.52 is: 120,941.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,630.48 : 320,467.38 = 80,622.52 : x
  2. Step 2: Convert to fraction form
    213,630.48/320,467.38 = 80,622.52/x
  3. Step 3: Cross multiply
    213,630.48x = 320,467.38 × 80,622.52
  4. Step 4: Simplify right side
    213,630.48x = 25,836,887,753.40
  5. Step 5: Solve for x
    x = 25,836,887,753.40/213,630.48
  6. Step 6: Final answer
    x = 120,941.95

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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.