Finding the Fourth Proportional to 93.26, 139.68 and 84.02
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Solution
The fourth proportional to 93.26, 139.68 and 84.02 is: 125.84
Step by Step Solution
- Step 1: Write the proportion equation
93.26 : 139.68 = 84.02 : x - Step 2: Convert to fraction form
93.26/139.68 = 84.02/x - Step 3: Cross multiply
93.26x = 139.68 × 84.02 - Step 4: Simplify right side
93.26x = 11,735.91 - Step 5: Solve for x
x = 11,735.91/93.26 - Step 6: Final answer
x = 125.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.