Finding the Fourth Proportional to 135.15, 201.73 and 125.11
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Solution
The fourth proportional to 135.15, 201.73 and 125.11 is: 186.75
Step by Step Solution
- Step 1: Write the proportion equation
135.15 : 201.73 = 125.11 : x - Step 2: Convert to fraction form
135.15/201.73 = 125.11/x - Step 3: Cross multiply
135.15x = 201.73 × 125.11 - Step 4: Simplify right side
135.15x = 25,237.81 - Step 5: Solve for x
x = 25,237.81/135.15 - Step 6: Final answer
x = 186.75
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.