Home / 198,450.27-273,856.77-107,804.21

Finding the Fourth Proportional to 198,450.27, 273,856.77 and 107,804.21

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Solution

The fourth proportional to 198,450.27, 273,856.77 and 107,804.21 is: 148,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,450.27 : 273,856.77 = 107,804.21 : x
  2. Step 2: Convert to fraction form
    198,450.27/273,856.77 = 107,804.21/x
  3. Step 3: Cross multiply
    198,450.27x = 273,856.77 × 107,804.21
  4. Step 4: Simplify right side
    198,450.27x = 29,522,911,373.72
  5. Step 5: Solve for x
    x = 29,522,911,373.72/198,450.27
  6. Step 6: Final answer
    x = 148,767.30

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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.