Home / 198,409.16-273,806.63-107,766.89

Finding the Fourth Proportional to 198,409.16, 273,806.63 and 107,766.89

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Solution

The fourth proportional to 198,409.16, 273,806.63 and 107,766.89 is: 148,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,409.16 : 273,806.63 = 107,766.89 : x
  2. Step 2: Convert to fraction form
    198,409.16/273,806.63 = 107,766.89/x
  3. Step 3: Cross multiply
    198,409.16x = 273,806.63 × 107,766.89
  4. Step 4: Simplify right side
    198,409.16x = 29,507,289,122.16
  5. Step 5: Solve for x
    x = 29,507,289,122.16/198,409.16
  6. Step 6: Final answer
    x = 148,719.39

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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.