Finding the Fourth Proportional to 134.93, 185.91 and 91.19
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Solution
The fourth proportional to 134.93, 185.91 and 91.19 is: 125.64
Step by Step Solution
- Step 1: Write the proportion equation
134.93 : 185.91 = 91.19 : x - Step 2: Convert to fraction form
134.93/185.91 = 91.19/x - Step 3: Cross multiply
134.93x = 185.91 × 91.19 - Step 4: Simplify right side
134.93x = 16,953.13 - Step 5: Solve for x
x = 16,953.13/134.93 - Step 6: Final answer
x = 125.64
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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.