Finding the Fourth Proportional to 136.12, 203.93 and 84.73
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Solution
The fourth proportional to 136.12, 203.93 and 84.73 is: 126.94
Step by Step Solution
- Step 1: Write the proportion equation
136.12 : 203.93 = 84.73 : x - Step 2: Convert to fraction form
136.12/203.93 = 84.73/x - Step 3: Cross multiply
136.12x = 203.93 × 84.73 - Step 4: Simplify right side
136.12x = 17,278.99 - Step 5: Solve for x
x = 17,278.99/136.12 - Step 6: Final answer
x = 126.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.