Home / 193,076.80-289,226.40-133,979.20

Finding the Fourth Proportional to 193,076.80, 289,226.40 and 133,979.20

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Solution

The fourth proportional to 193,076.80, 289,226.40 and 133,979.20 is: 200,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,076.80 : 289,226.40 = 133,979.20 : x
  2. Step 2: Convert to fraction form
    193,076.80/289,226.40 = 133,979.20/x
  3. Step 3: Cross multiply
    193,076.80x = 289,226.40 × 133,979.20
  4. Step 4: Simplify right side
    193,076.80x = 38,750,321,690.88
  5. Step 5: Solve for x
    x = 38,750,321,690.88/193,076.80
  6. Step 6: Final answer
    x = 200,699.01

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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.