Home / 99,413.75-149,130.98-31,928.73

Finding the Fourth Proportional to 99,413.75, 149,130.98 and 31,928.73

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Solution

The fourth proportional to 99,413.75, 149,130.98 and 31,928.73 is: 47,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,413.75 : 149,130.98 = 31,928.73 : x
  2. Step 2: Convert to fraction form
    99,413.75/149,130.98 = 31,928.73/x
  3. Step 3: Cross multiply
    99,413.75x = 149,130.98 × 31,928.73
  4. Step 4: Simplify right side
    99,413.75x = 4,761,562,635.41
  5. Step 5: Solve for x
    x = 4,761,562,635.41/99,413.75
  6. Step 6: Final answer
    x = 47,896.42

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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.