Finding the Fourth Proportional to 135.79, 203.76 and 54.65
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Solution
The fourth proportional to 135.79, 203.76 and 54.65 is: 82.01
Step by Step Solution
- Step 1: Write the proportion equation
135.79 : 203.76 = 54.65 : x - Step 2: Convert to fraction form
135.79/203.76 = 54.65/x - Step 3: Cross multiply
135.79x = 203.76 × 54.65 - Step 4: Simplify right side
135.79x = 11,135.99 - Step 5: Solve for x
x = 11,135.99/135.79 - Step 6: Final answer
x = 82.01
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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.