Finding the Fourth Proportional to 107.99, 149.06 and 68.71
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Solution
The fourth proportional to 107.99, 149.06 and 68.71 is: 94.84
Step by Step Solution
- Step 1: Write the proportion equation
107.99 : 149.06 = 68.71 : x - Step 2: Convert to fraction form
107.99/149.06 = 68.71/x - Step 3: Cross multiply
107.99x = 149.06 × 68.71 - Step 4: Simplify right side
107.99x = 10,241.91 - Step 5: Solve for x
x = 10,241.91/107.99 - Step 6: Final answer
x = 94.84
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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.