Finding the Fourth Proportional to 116.58, 160.88 and 69.99
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Solution
The fourth proportional to 116.58, 160.88 and 69.99 is: 96.58
Step by Step Solution
- Step 1: Write the proportion equation
116.58 : 160.88 = 69.99 : x - Step 2: Convert to fraction form
116.58/160.88 = 69.99/x - Step 3: Cross multiply
116.58x = 160.88 × 69.99 - Step 4: Simplify right side
116.58x = 11,258.84 - Step 5: Solve for x
x = 11,258.84/116.58 - Step 6: Final answer
x = 96.58
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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.