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Finding the Fourth Proportional to 148,850.29, 205,413.67 and 80,866.70

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Solution

The fourth proportional to 148,850.29, 205,413.67 and 80,866.70 is: 111,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,850.29 : 205,413.67 = 80,866.70 : x
  2. Step 2: Convert to fraction form
    148,850.29/205,413.67 = 80,866.70/x
  3. Step 3: Cross multiply
    148,850.29x = 205,413.67 × 80,866.70
  4. Step 4: Simplify right side
    148,850.29x = 16,611,125,627.79
  5. Step 5: Solve for x
    x = 16,611,125,627.79/148,850.29
  6. Step 6: Final answer
    x = 111,596.19

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1.5x scale

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.