Finding the Fourth Proportional to 122,755.36, 184,156.80 and 47,872.48
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Solution
The fourth proportional to 122,755.36, 184,156.80 and 47,872.48 is: 71,817.99
Step by Step Solution
- Step 1: Write the proportion equation
122,755.36 : 184,156.80 = 47,872.48 : x - Step 2: Convert to fraction form
122,755.36/184,156.80 = 47,872.48/x - Step 3: Cross multiply
122,755.36x = 184,156.80 × 47,872.48 - Step 4: Simplify right side
122,755.36x = 8,816,042,724.86 - Step 5: Solve for x
x = 8,816,042,724.86/122,755.36 - Step 6: Final answer
x = 71,817.99
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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.