Finding the Fourth Proportional to 84.08, 125.44 and 73.28
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Solution
The fourth proportional to 84.08, 125.44 and 73.28 is: 109.33
Step by Step Solution
- Step 1: Write the proportion equation
84.08 : 125.44 = 73.28 : x - Step 2: Convert to fraction form
84.08/125.44 = 73.28/x - Step 3: Cross multiply
84.08x = 125.44 × 73.28 - Step 4: Simplify right side
84.08x = 9,192.24 - Step 5: Solve for x
x = 9,192.24/84.08 - Step 6: Final answer
x = 109.33
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.