Home / 193,235.80-289,975.30-82,426.20

Finding the Fourth Proportional to 193,235.80, 289,975.30 and 82,426.20

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Solution

The fourth proportional to 193,235.80, 289,975.30 and 82,426.20 is: 123,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,235.80 : 289,975.30 = 82,426.20 : x
  2. Step 2: Convert to fraction form
    193,235.80/289,975.30 = 82,426.20/x
  3. Step 3: Cross multiply
    193,235.80x = 289,975.30 × 82,426.20
  4. Step 4: Simplify right side
    193,235.80x = 23,901,562,072.86
  5. Step 5: Solve for x
    x = 23,901,562,072.86/193,235.80
  6. Step 6: Final answer
    x = 123,691.17

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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.