Home / 139,413.66-209,120.07-39,573.94

Finding the Fourth Proportional to 139,413.66, 209,120.07 and 39,573.94

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Solution

The fourth proportional to 139,413.66, 209,120.07 and 39,573.94 is: 59,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,413.66 : 209,120.07 = 39,573.94 : x
  2. Step 2: Convert to fraction form
    139,413.66/209,120.07 = 39,573.94/x
  3. Step 3: Cross multiply
    139,413.66x = 209,120.07 × 39,573.94
  4. Step 4: Simplify right side
    139,413.66x = 8,275,704,580.18
  5. Step 5: Solve for x
    x = 8,275,704,580.18/139,413.66
  6. Step 6: Final answer
    x = 59,360.79

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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.