Finding the Fourth Proportional to 135.29, 187.18 and 110.70
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Solution
The fourth proportional to 135.29, 187.18 and 110.70 is: 153.15
Step by Step Solution
- Step 1: Write the proportion equation
135.29 : 187.18 = 110.70 : x - Step 2: Convert to fraction form
135.29/187.18 = 110.70/x - Step 3: Cross multiply
135.29x = 187.18 × 110.70 - Step 4: Simplify right side
135.29x = 20,720.55 - Step 5: Solve for x
x = 20,720.55/135.29 - Step 6: Final answer
x = 153.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.