Finding the Fourth Proportional to 116.24, 160.36 and 72.54
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Solution
The fourth proportional to 116.24, 160.36 and 72.54 is: 100.07
Step by Step Solution
- Step 1: Write the proportion equation
116.24 : 160.36 = 72.54 : x - Step 2: Convert to fraction form
116.24/160.36 = 72.54/x - Step 3: Cross multiply
116.24x = 160.36 × 72.54 - Step 4: Simplify right side
116.24x = 11,632.51 - Step 5: Solve for x
x = 11,632.51/116.24 - Step 6: Final answer
x = 100.07
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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.