Finding the Fourth Proportional to 114.54, 158.00 and 83.49
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Solution
The fourth proportional to 114.54, 158.00 and 83.49 is: 115.17
Step by Step Solution
- Step 1: Write the proportion equation
114.54 : 158.00 = 83.49 : x - Step 2: Convert to fraction form
114.54/158.00 = 83.49/x - Step 3: Cross multiply
114.54x = 158.00 × 83.49 - Step 4: Simplify right side
114.54x = 13,191.00 - Step 5: Solve for x
x = 13,191.00/114.54 - Step 6: Final answer
x = 115.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.