Home / 139,134.21-208,812.03-50,413.08

Finding the Fourth Proportional to 139,134.21, 208,812.03 and 50,413.08

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Solution

The fourth proportional to 139,134.21, 208,812.03 and 50,413.08 is: 75,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,134.21 : 208,812.03 = 50,413.08 : x
  2. Step 2: Convert to fraction form
    139,134.21/208,812.03 = 50,413.08/x
  3. Step 3: Cross multiply
    139,134.21x = 208,812.03 × 50,413.08
  4. Step 4: Simplify right side
    139,134.21x = 10,526,858,167.35
  5. Step 5: Solve for x
    x = 10,526,858,167.35/139,134.21
  6. Step 6: Final answer
    x = 75,659.74

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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.