Home / 198,450.71-273,866.90-107,806.65

Finding the Fourth Proportional to 198,450.71, 273,866.90 and 107,806.65

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Solution

The fourth proportional to 198,450.71, 273,866.90 and 107,806.65 is: 148,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,450.71 : 273,866.90 = 107,806.65 : x
  2. Step 2: Convert to fraction form
    198,450.71/273,866.90 = 107,806.65/x
  3. Step 3: Cross multiply
    198,450.71x = 273,866.90 × 107,806.65
  4. Step 4: Simplify right side
    198,450.71x = 29,524,672,495.85
  5. Step 5: Solve for x
    x = 29,524,672,495.85/198,450.71
  6. Step 6: Final answer
    x = 148,775.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.