Finding the Fourth Proportional to 160.12, 221.21 and 104.99
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Solution
The fourth proportional to 160.12, 221.21 and 104.99 is: 145.04
Step by Step Solution
- Step 1: Write the proportion equation
160.12 : 221.21 = 104.99 : x - Step 2: Convert to fraction form
160.12/221.21 = 104.99/x - Step 3: Cross multiply
160.12x = 221.21 × 104.99 - Step 4: Simplify right side
160.12x = 23,223.21 - Step 5: Solve for x
x = 23,223.21/160.12 - Step 6: Final answer
x = 145.04
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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.