Finding the Fourth Proportional to 129.84, 179.08 and 92.99
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Solution
The fourth proportional to 129.84, 179.08 and 92.99 is: 128.25
Step by Step Solution
- Step 1: Write the proportion equation
129.84 : 179.08 = 92.99 : x - Step 2: Convert to fraction form
129.84/179.08 = 92.99/x - Step 3: Cross multiply
129.84x = 179.08 × 92.99 - Step 4: Simplify right side
129.84x = 16,651.52 - Step 5: Solve for x
x = 16,651.52/129.84 - Step 6: Final answer
x = 128.25
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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.