Finding the Fourth Proportional to 107.99, 162.08 and 71.95
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Solution
The fourth proportional to 107.99, 162.08 and 71.95 is: 107.98
Step by Step Solution
- Step 1: Write the proportion equation
107.99 : 162.08 = 71.95 : x - Step 2: Convert to fraction form
107.99/162.08 = 71.95/x - Step 3: Cross multiply
107.99x = 162.08 × 71.95 - Step 4: Simplify right side
107.99x = 11,660.49 - Step 5: Solve for x
x = 11,660.49/107.99 - Step 6: Final answer
x = 107.98
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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.