Home / 193,039.27-289,460.12-80,688.83

Finding the Fourth Proportional to 193,039.27, 289,460.12 and 80,688.83

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Solution

The fourth proportional to 193,039.27, 289,460.12 and 80,688.83 is: 120,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,039.27 : 289,460.12 = 80,688.83 : x
  2. Step 2: Convert to fraction form
    193,039.27/289,460.12 = 80,688.83/x
  3. Step 3: Cross multiply
    193,039.27x = 289,460.12 × 80,688.83
  4. Step 4: Simplify right side
    193,039.27x = 23,356,196,563.71
  5. Step 5: Solve for x
    x = 23,356,196,563.71/193,039.27
  6. Step 6: Final answer
    x = 120,991.95

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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.