Home / 148,849.17-205,413.26-80,866.64

Finding the Fourth Proportional to 148,849.17, 205,413.26 and 80,866.64

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Solution

The fourth proportional to 148,849.17, 205,413.26 and 80,866.64 is: 111,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,849.17 : 205,413.26 = 80,866.64 : x
  2. Step 2: Convert to fraction form
    148,849.17/205,413.26 = 80,866.64/x
  3. Step 3: Cross multiply
    148,849.17x = 205,413.26 × 80,866.64
  4. Step 4: Simplify right side
    148,849.17x = 16,611,078,716.25
  5. Step 5: Solve for x
    x = 16,611,078,716.25/148,849.17
  6. Step 6: Final answer
    x = 111,596.72

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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.