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Finding the Fourth Proportional to 166,893.26, 230,311.70 and 90,413.80

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Solution

The fourth proportional to 166,893.26, 230,311.70 and 90,413.80 is: 124,770.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,893.26 : 230,311.70 = 90,413.80 : x
  2. Step 2: Convert to fraction form
    166,893.26/230,311.70 = 90,413.80/x
  3. Step 3: Cross multiply
    166,893.26x = 230,311.70 × 90,413.80
  4. Step 4: Simplify right side
    166,893.26x = 20,823,355,981.46
  5. Step 5: Solve for x
    x = 20,823,355,981.46/166,893.26
  6. Step 6: Final answer
    x = 124,770.50

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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.