Home / 198,833.11-298,249.67-72,482.83

Finding the Fourth Proportional to 198,833.11, 298,249.67 and 72,482.83

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Solution

The fourth proportional to 198,833.11, 298,249.67 and 72,482.83 is: 108,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,833.11 : 298,249.67 = 72,482.83 : x
  2. Step 2: Convert to fraction form
    198,833.11/298,249.67 = 72,482.83/x
  3. Step 3: Cross multiply
    198,833.11x = 298,249.67 × 72,482.83
  4. Step 4: Simplify right side
    198,833.11x = 21,617,980,128.17
  5. Step 5: Solve for x
    x = 21,617,980,128.17/198,833.11
  6. Step 6: Final answer
    x = 108,724.25

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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.