Finding the Fourth Proportional to 163.98, 245.99 and 86.92
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Solution
The fourth proportional to 163.98, 245.99 and 86.92 is: 130.39
Step by Step Solution
- Step 1: Write the proportion equation
163.98 : 245.99 = 86.92 : x - Step 2: Convert to fraction form
163.98/245.99 = 86.92/x - Step 3: Cross multiply
163.98x = 245.99 × 86.92 - Step 4: Simplify right side
163.98x = 21,381.05 - Step 5: Solve for x
x = 21,381.05/163.98 - Step 6: Final answer
x = 130.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.