Finding the Fourth Proportional to 125.36, 173 and 81.08
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Solution
The fourth proportional to 125.36, 173 and 81.08 is: 111.89
Step by Step Solution
- Step 1: Write the proportion equation
125.36 : 173 = 81.08 : x - Step 2: Convert to fraction form
125.36/173 = 81.08/x - Step 3: Cross multiply
125.36x = 173 × 81.08 - Step 4: Simplify right side
125.36x = 14,026.84 - Step 5: Solve for x
x = 14,026.84/125.36 - Step 6: Final answer
x = 111.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.