Finding the Fourth Proportional to 135.63, 187.11 and 91.95
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Solution
The fourth proportional to 135.63, 187.11 and 91.95 is: 126.85
Step by Step Solution
- Step 1: Write the proportion equation
135.63 : 187.11 = 91.95 : x - Step 2: Convert to fraction form
135.63/187.11 = 91.95/x - Step 3: Cross multiply
135.63x = 187.11 × 91.95 - Step 4: Simplify right side
135.63x = 17,204.76 - Step 5: Solve for x
x = 17,204.76/135.63 - Step 6: Final answer
x = 126.85
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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.