Home / 213,860.19-320,644.49-108,475.95

Finding the Fourth Proportional to 213,860.19, 320,644.49 and 108,475.95

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Solution

The fourth proportional to 213,860.19, 320,644.49 and 108,475.95 is: 162,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,860.19 : 320,644.49 = 108,475.95 : x
  2. Step 2: Convert to fraction form
    213,860.19/320,644.49 = 108,475.95/x
  3. Step 3: Cross multiply
    213,860.19x = 320,644.49 × 108,475.95
  4. Step 4: Simplify right side
    213,860.19x = 34,782,215,122.64
  5. Step 5: Solve for x
    x = 34,782,215,122.64/213,860.19
  6. Step 6: Final answer
    x = 162,639.97

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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.