Finding the Fourth Proportional to 135.74, 203.18 and 84.44
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Solution
The fourth proportional to 135.74, 203.18 and 84.44 is: 126.39
Step by Step Solution
- Step 1: Write the proportion equation
135.74 : 203.18 = 84.44 : x - Step 2: Convert to fraction form
135.74/203.18 = 84.44/x - Step 3: Cross multiply
135.74x = 203.18 × 84.44 - Step 4: Simplify right side
135.74x = 17,156.60 - Step 5: Solve for x
x = 17,156.60/135.74 - Step 6: Final answer
x = 126.39
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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.