Finding the Fourth Proportional to 122,132.26, 168,539.48 and 68,416.92
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Solution
The fourth proportional to 122,132.26, 168,539.48 and 68,416.92 is: 94,413.65
Step by Step Solution
- Step 1: Write the proportion equation
122,132.26 : 168,539.48 = 68,416.92 : x - Step 2: Convert to fraction form
122,132.26/168,539.48 = 68,416.92/x - Step 3: Cross multiply
122,132.26x = 168,539.48 × 68,416.92 - Step 4: Simplify right side
122,132.26x = 11,530,952,120.00 - Step 5: Solve for x
x = 11,530,952,120.00/122,132.26 - Step 6: Final answer
x = 94,413.65
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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.