Finding the Fourth Proportional to 135.10, 202.49 and 104.68
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Solution
The fourth proportional to 135.10, 202.49 and 104.68 is: 156.89
Step by Step Solution
- Step 1: Write the proportion equation
135.10 : 202.49 = 104.68 : x - Step 2: Convert to fraction form
135.10/202.49 = 104.68/x - Step 3: Cross multiply
135.10x = 202.49 × 104.68 - Step 4: Simplify right side
135.10x = 21,195.12 - Step 5: Solve for x
x = 21,195.12/135.10 - Step 6: Final answer
x = 156.89
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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.