Finding the Fourth Proportional to 162.02, 243.12 and 89.96
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Solution
The fourth proportional to 162.02, 243.12 and 89.96 is: 134.99
Step by Step Solution
- Step 1: Write the proportion equation
162.02 : 243.12 = 89.96 : x - Step 2: Convert to fraction form
162.02/243.12 = 89.96/x - Step 3: Cross multiply
162.02x = 243.12 × 89.96 - Step 4: Simplify right side
162.02x = 21,871.08 - Step 5: Solve for x
x = 21,871.08/162.02 - Step 6: Final answer
x = 134.99
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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.