Home / 203,982.71-281,509.43-123,413.63

Finding the Fourth Proportional to 203,982.71, 281,509.43 and 123,413.63

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Solution

The fourth proportional to 203,982.71, 281,509.43 and 123,413.63 is: 170,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,982.71 : 281,509.43 = 123,413.63 : x
  2. Step 2: Convert to fraction form
    203,982.71/281,509.43 = 123,413.63/x
  3. Step 3: Cross multiply
    203,982.71x = 281,509.43 × 123,413.63
  4. Step 4: Simplify right side
    203,982.71x = 34,742,098,610.92
  5. Step 5: Solve for x
    x = 34,742,098,610.92/203,982.71
  6. Step 6: Final answer
    x = 170,318.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.