Finding the Fourth Proportional to 107.99, 148.94 and 79.98
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Solution
The fourth proportional to 107.99, 148.94 and 79.98 is: 110.31
Step by Step Solution
- Step 1: Write the proportion equation
107.99 : 148.94 = 79.98 : x - Step 2: Convert to fraction form
107.99/148.94 = 79.98/x - Step 3: Cross multiply
107.99x = 148.94 × 79.98 - Step 4: Simplify right side
107.99x = 11,911.82 - Step 5: Solve for x
x = 11,911.82/107.99 - Step 6: Final answer
x = 110.31
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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.