Finding the Fourth Proportional to 86.15, 118.71 and 60.23
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Solution
The fourth proportional to 86.15, 118.71 and 60.23 is: 82.99
Step by Step Solution
- Step 1: Write the proportion equation
86.15 : 118.71 = 60.23 : x - Step 2: Convert to fraction form
86.15/118.71 = 60.23/x - Step 3: Cross multiply
86.15x = 118.71 × 60.23 - Step 4: Simplify right side
86.15x = 7,150.20 - Step 5: Solve for x
x = 7,150.20/86.15 - Step 6: Final answer
x = 82.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.