Finding the Fourth Proportional to 135.75, 203.79 and 97.47
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Solution
The fourth proportional to 135.75, 203.79 and 97.47 is: 146.32
Step by Step Solution
- Step 1: Write the proportion equation
135.75 : 203.79 = 97.47 : x - Step 2: Convert to fraction form
135.75/203.79 = 97.47/x - Step 3: Cross multiply
135.75x = 203.79 × 97.47 - Step 4: Simplify right side
135.75x = 19,863.41 - Step 5: Solve for x
x = 19,863.41/135.75 - Step 6: Final answer
x = 146.32
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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.