Finding the Fourth Proportional to 97.30, 133.93 and 84.99
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Solution
The fourth proportional to 97.30, 133.93 and 84.99 is: 116.99
Step by Step Solution
- Step 1: Write the proportion equation
97.30 : 133.93 = 84.99 : x - Step 2: Convert to fraction form
97.30/133.93 = 84.99/x - Step 3: Cross multiply
97.30x = 133.93 × 84.99 - Step 4: Simplify right side
97.30x = 11,382.71 - Step 5: Solve for x
x = 11,382.71/97.30 - Step 6: Final answer
x = 116.99
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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.