Finding the Fourth Proportional to 107.99, 149.07 and 68.64
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Solution
The fourth proportional to 107.99, 149.07 and 68.64 is: 94.75
Step by Step Solution
- Step 1: Write the proportion equation
107.99 : 149.07 = 68.64 : x - Step 2: Convert to fraction form
107.99/149.07 = 68.64/x - Step 3: Cross multiply
107.99x = 149.07 × 68.64 - Step 4: Simplify right side
107.99x = 10,232.16 - Step 5: Solve for x
x = 10,232.16/107.99 - Step 6: Final answer
x = 94.75
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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.