Home / 193,142.20-289,654.01-133,553.55

Finding the Fourth Proportional to 193,142.20, 289,654.01 and 133,553.55

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Solution

The fourth proportional to 193,142.20, 289,654.01 and 133,553.55 is: 200,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,142.20 : 289,654.01 = 133,553.55 : x
  2. Step 2: Convert to fraction form
    193,142.20/289,654.01 = 133,553.55/x
  3. Step 3: Cross multiply
    193,142.20x = 289,654.01 × 133,553.55
  4. Step 4: Simplify right side
    193,142.20x = 38,684,321,641.12
  5. Step 5: Solve for x
    x = 38,684,321,641.12/193,142.20
  6. Step 6: Final answer
    x = 200,289.33

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1.5x scale

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.