Home / 193,243.08-289,728.82-85,121.15

Finding the Fourth Proportional to 193,243.08, 289,728.82 and 85,121.15

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Solution

The fourth proportional to 193,243.08, 289,728.82 and 85,121.15 is: 127,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,243.08 : 289,728.82 = 85,121.15 : x
  2. Step 2: Convert to fraction form
    193,243.08/289,728.82 = 85,121.15/x
  3. Step 3: Cross multiply
    193,243.08x = 289,728.82 × 85,121.15
  4. Step 4: Simplify right side
    193,243.08x = 24,662,049,004.30
  5. Step 5: Solve for x
    x = 24,662,049,004.30/193,243.08
  6. Step 6: Final answer
    x = 127,621.90

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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.