Finding the Fourth Proportional to 135.79, 203.78 and 63.66
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Solution
The fourth proportional to 135.79, 203.78 and 63.66 is: 95.53
Step by Step Solution
- Step 1: Write the proportion equation
135.79 : 203.78 = 63.66 : x - Step 2: Convert to fraction form
135.79/203.78 = 63.66/x - Step 3: Cross multiply
135.79x = 203.78 × 63.66 - Step 4: Simplify right side
135.79x = 12,972.63 - Step 5: Solve for x
x = 12,972.63/135.79 - Step 6: Final answer
x = 95.53
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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.