Finding the Fourth Proportional to 135.08, 186.42 and 79.83
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Solution
The fourth proportional to 135.08, 186.42 and 79.83 is: 110.17
Step by Step Solution
- Step 1: Write the proportion equation
135.08 : 186.42 = 79.83 : x - Step 2: Convert to fraction form
135.08/186.42 = 79.83/x - Step 3: Cross multiply
135.08x = 186.42 × 79.83 - Step 4: Simplify right side
135.08x = 14,882.21 - Step 5: Solve for x
x = 14,882.21/135.08 - Step 6: Final answer
x = 110.17
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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.