Finding the Fourth Proportional to 129.73, 179.06 and 92.99
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Solution
The fourth proportional to 129.73, 179.06 and 92.99 is: 128.35
Step by Step Solution
- Step 1: Write the proportion equation
129.73 : 179.06 = 92.99 : x - Step 2: Convert to fraction form
129.73/179.06 = 92.99/x - Step 3: Cross multiply
129.73x = 179.06 × 92.99 - Step 4: Simplify right side
129.73x = 16,650.79 - Step 5: Solve for x
x = 16,650.79/129.73 - Step 6: Final answer
x = 128.35
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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.