Finding the Fourth Proportional to 116.18, 160.30 and 94.31
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Solution
The fourth proportional to 116.18, 160.30 and 94.31 is: 130.12
Step by Step Solution
- Step 1: Write the proportion equation
116.18 : 160.30 = 94.31 : x - Step 2: Convert to fraction form
116.18/160.30 = 94.31/x - Step 3: Cross multiply
116.18x = 160.30 × 94.31 - Step 4: Simplify right side
116.18x = 15,117.89 - Step 5: Solve for x
x = 15,117.89/116.18 - Step 6: Final answer
x = 130.12
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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.