Finding the Fourth Proportional to 128,994.62, 193,566.66 and 54,108.08
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Solution
The fourth proportional to 128,994.62, 193,566.66 and 54,108.08 is: 81,193.47
Step by Step Solution
- Step 1: Write the proportion equation
128,994.62 : 193,566.66 = 54,108.08 : x - Step 2: Convert to fraction form
128,994.62/193,566.66 = 54,108.08/x - Step 3: Cross multiply
128,994.62x = 193,566.66 × 54,108.08 - Step 4: Simplify right side
128,994.62x = 10,473,520,324.61 - Step 5: Solve for x
x = 10,473,520,324.61/128,994.62 - Step 6: Final answer
x = 81,193.47
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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.