Finding the Fourth Proportional to 135.24, 186.26 and 117.75
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Solution
The fourth proportional to 135.24, 186.26 and 117.75 is: 162.16
Step by Step Solution
- Step 1: Write the proportion equation
135.24 : 186.26 = 117.75 : x - Step 2: Convert to fraction form
135.24/186.26 = 117.75/x - Step 3: Cross multiply
135.24x = 186.26 × 117.75 - Step 4: Simplify right side
135.24x = 21,931.18 - Step 5: Solve for x
x = 21,931.18/135.24 - Step 6: Final answer
x = 162.16
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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.