Home / 142,413.98-213,653.28-75,819.02

Finding the Fourth Proportional to 142,413.98, 213,653.28 and 75,819.02

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Solution

The fourth proportional to 142,413.98, 213,653.28 and 75,819.02 is: 113,745.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,413.98 : 213,653.28 = 75,819.02 : x
  2. Step 2: Convert to fraction form
    142,413.98/213,653.28 = 75,819.02/x
  3. Step 3: Cross multiply
    142,413.98x = 213,653.28 × 75,819.02
  4. Step 4: Simplify right side
    142,413.98x = 16,198,982,309.39
  5. Step 5: Solve for x
    x = 16,198,982,309.39/142,413.98
  6. Step 6: Final answer
    x = 113,745.73

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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.