Finding the Fourth Proportional to 114.08, 170.88 and 87.08
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Solution
The fourth proportional to 114.08, 170.88 and 87.08 is: 130.44
Step by Step Solution
- Step 1: Write the proportion equation
114.08 : 170.88 = 87.08 : x - Step 2: Convert to fraction form
114.08/170.88 = 87.08/x - Step 3: Cross multiply
114.08x = 170.88 × 87.08 - Step 4: Simplify right side
114.08x = 14,880.23 - Step 5: Solve for x
x = 14,880.23/114.08 - Step 6: Final answer
x = 130.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.