Home / 193,011.04-289,481.32-80,661.21

Finding the Fourth Proportional to 193,011.04, 289,481.32 and 80,661.21

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Solution

The fourth proportional to 193,011.04, 289,481.32 and 80,661.21 is: 120,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,011.04 : 289,481.32 = 80,661.21 : x
  2. Step 2: Convert to fraction form
    193,011.04/289,481.32 = 80,661.21/x
  3. Step 3: Cross multiply
    193,011.04x = 289,481.32 × 80,661.21
  4. Step 4: Simplify right side
    193,011.04x = 23,349,913,543.60
  5. Step 5: Solve for x
    x = 23,349,913,543.60/193,011.04
  6. Step 6: Final answer
    x = 120,977.09

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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.