Finding the Fourth Proportional to 84.68, 116.58 and 73.70
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Solution
The fourth proportional to 84.68, 116.58 and 73.70 is: 101.46
Step by Step Solution
- Step 1: Write the proportion equation
84.68 : 116.58 = 73.70 : x - Step 2: Convert to fraction form
84.68/116.58 = 73.70/x - Step 3: Cross multiply
84.68x = 116.58 × 73.70 - Step 4: Simplify right side
84.68x = 8,591.95 - Step 5: Solve for x
x = 8,591.95/84.68 - Step 6: Final answer
x = 101.46
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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.