Finding the Fourth Proportional to 133.07, 183.63 and 83.99
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Solution
The fourth proportional to 133.07, 183.63 and 83.99 is: 115.90
Step by Step Solution
- Step 1: Write the proportion equation
133.07 : 183.63 = 83.99 : x - Step 2: Convert to fraction form
133.07/183.63 = 83.99/x - Step 3: Cross multiply
133.07x = 183.63 × 83.99 - Step 4: Simplify right side
133.07x = 15,423.08 - Step 5: Solve for x
x = 15,423.08/133.07 - Step 6: Final answer
x = 115.90
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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.