Finding the Fourth Proportional to 134.64, 201.94 and 73.80
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Solution
The fourth proportional to 134.64, 201.94 and 73.80 is: 110.69
Step by Step Solution
- Step 1: Write the proportion equation
134.64 : 201.94 = 73.80 : x - Step 2: Convert to fraction form
134.64/201.94 = 73.80/x - Step 3: Cross multiply
134.64x = 201.94 × 73.80 - Step 4: Simplify right side
134.64x = 14,902.99 - Step 5: Solve for x
x = 14,902.99/134.64 - Step 6: Final answer
x = 110.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.