Home / 268,942.53-403,413.39-81,954.03

Finding the Fourth Proportional to 268,942.53, 403,413.39 and 81,954.03

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Solution

The fourth proportional to 268,942.53, 403,413.39 and 81,954.03 is: 122,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,942.53 : 403,413.39 = 81,954.03 : x
  2. Step 2: Convert to fraction form
    268,942.53/403,413.39 = 81,954.03/x
  3. Step 3: Cross multiply
    268,942.53x = 403,413.39 × 81,954.03
  4. Step 4: Simplify right side
    268,942.53x = 33,061,353,066.46
  5. Step 5: Solve for x
    x = 33,061,353,066.46/268,942.53
  6. Step 6: Final answer
    x = 122,930.92

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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.