Finding the Fourth Proportional to 88.55, 122.47 and 83.99
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Solution
The fourth proportional to 88.55, 122.47 and 83.99 is: 116.17
Step by Step Solution
- Step 1: Write the proportion equation
88.55 : 122.47 = 83.99 : x - Step 2: Convert to fraction form
88.55/122.47 = 83.99/x - Step 3: Cross multiply
88.55x = 122.47 × 83.99 - Step 4: Simplify right side
88.55x = 10,286.35 - Step 5: Solve for x
x = 10,286.35/88.55 - Step 6: Final answer
x = 116.17
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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.