Finding the Fourth Proportional to 136.05, 204.05 and 84.69
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Solution
The fourth proportional to 136.05, 204.05 and 84.69 is: 127.02
Step by Step Solution
- Step 1: Write the proportion equation
136.05 : 204.05 = 84.69 : x - Step 2: Convert to fraction form
136.05/204.05 = 84.69/x - Step 3: Cross multiply
136.05x = 204.05 × 84.69 - Step 4: Simplify right side
136.05x = 17,280.57 - Step 5: Solve for x
x = 17,280.57/136.05 - Step 6: Final answer
x = 127.02
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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.