Finding the Fourth Proportional to 135.48, 187.08 and 102.68
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Solution
The fourth proportional to 135.48, 187.08 and 102.68 is: 141.78
Step by Step Solution
- Step 1: Write the proportion equation
135.48 : 187.08 = 102.68 : x - Step 2: Convert to fraction form
135.48/187.08 = 102.68/x - Step 3: Cross multiply
135.48x = 187.08 × 102.68 - Step 4: Simplify right side
135.48x = 19,208.44 - Step 5: Solve for x
x = 19,208.44/135.48 - Step 6: Final answer
x = 141.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.