Finding the Fourth Proportional to 146.93, 202.70 and 84.75
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Solution
The fourth proportional to 146.93, 202.70 and 84.75 is: 116.91
Step by Step Solution
- Step 1: Write the proportion equation
146.93 : 202.70 = 84.75 : x - Step 2: Convert to fraction form
146.93/202.70 = 84.75/x - Step 3: Cross multiply
146.93x = 202.70 × 84.75 - Step 4: Simplify right side
146.93x = 17,177.39 - Step 5: Solve for x
x = 17,177.39/146.93 - Step 6: Final answer
x = 116.91
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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.