Home / 139,906.14-193,069.62-76,243.92

Finding the Fourth Proportional to 139,906.14, 193,069.62 and 76,243.92

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Solution

The fourth proportional to 139,906.14, 193,069.62 and 76,243.92 is: 105,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,906.14 : 193,069.62 = 76,243.92 : x
  2. Step 2: Convert to fraction form
    139,906.14/193,069.62 = 76,243.92/x
  3. Step 3: Cross multiply
    139,906.14x = 193,069.62 × 76,243.92
  4. Step 4: Simplify right side
    139,906.14x = 14,720,384,661.71
  5. Step 5: Solve for x
    x = 14,720,384,661.71/139,906.14
  6. Step 6: Final answer
    x = 105,216.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.