Finding the Fourth Proportional to 122,117.02, 168,531.98 and 68,413.07
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Solution
The fourth proportional to 122,117.02, 168,531.98 and 68,413.07 is: 94,415.92
Step by Step Solution
- Step 1: Write the proportion equation
122,117.02 : 168,531.98 = 68,413.07 : x - Step 2: Convert to fraction form
122,117.02/168,531.98 = 68,413.07/x - Step 3: Cross multiply
122,117.02x = 168,531.98 × 68,413.07 - Step 4: Simplify right side
122,117.02x = 11,529,790,224.24 - Step 5: Solve for x
x = 11,529,790,224.24/122,117.02 - Step 6: Final answer
x = 94,415.92
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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.