Finding the Fourth Proportional to 163.34, 245.02 and 71.99
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Solution
The fourth proportional to 163.34, 245.02 and 71.99 is: 107.99
Step by Step Solution
- Step 1: Write the proportion equation
163.34 : 245.02 = 71.99 : x - Step 2: Convert to fraction form
163.34/245.02 = 71.99/x - Step 3: Cross multiply
163.34x = 245.02 × 71.99 - Step 4: Simplify right side
163.34x = 17,638.99 - Step 5: Solve for x
x = 17,638.99/163.34 - Step 6: Final answer
x = 107.99
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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.