Home / 189,998.76-284,906.07-77,634.36

Finding the Fourth Proportional to 189,998.76, 284,906.07 and 77,634.36

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Solution

The fourth proportional to 189,998.76, 284,906.07 and 77,634.36 is: 116,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,998.76 : 284,906.07 = 77,634.36 : x
  2. Step 2: Convert to fraction form
    189,998.76/284,906.07 = 77,634.36/x
  3. Step 3: Cross multiply
    189,998.76x = 284,906.07 × 77,634.36
  4. Step 4: Simplify right side
    189,998.76x = 22,118,500,404.57
  5. Step 5: Solve for x
    x = 22,118,500,404.57/189,998.76
  6. Step 6: Final answer
    x = 116,413.92

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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.