Finding the Fourth Proportional to 136,633.90, 203,577.08 and 128,994.44
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Solution
The fourth proportional to 136,633.90, 203,577.08 and 128,994.44 is: 192,194.70
Step by Step Solution
- Step 1: Write the proportion equation
136,633.90 : 203,577.08 = 128,994.44 : x - Step 2: Convert to fraction form
136,633.90/203,577.08 = 128,994.44/x - Step 3: Cross multiply
136,633.90x = 203,577.08 × 128,994.44 - Step 4: Simplify right side
136,633.90x = 26,260,311,431.44 - Step 5: Solve for x
x = 26,260,311,431.44/136,633.90 - Step 6: Final answer
x = 192,194.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.