Finding the Fourth Proportional to 122,778.52, 184,230.69 and 72,250.99
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Solution
The fourth proportional to 122,778.52, 184,230.69 and 72,250.99 is: 108,413.51
Step by Step Solution
- Step 1: Write the proportion equation
122,778.52 : 184,230.69 = 72,250.99 : x - Step 2: Convert to fraction form
122,778.52/184,230.69 = 72,250.99/x - Step 3: Cross multiply
122,778.52x = 184,230.69 × 72,250.99 - Step 4: Simplify right side
122,778.52x = 13,310,849,740.88 - Step 5: Solve for x
x = 13,310,849,740.88/122,778.52 - Step 6: Final answer
x = 108,413.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.