Finding the Fourth Proportional to 102.74, 154.16 and 44.99
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Solution
The fourth proportional to 102.74, 154.16 and 44.99 is: 67.50
Step by Step Solution
- Step 1: Write the proportion equation
102.74 : 154.16 = 44.99 : x - Step 2: Convert to fraction form
102.74/154.16 = 44.99/x - Step 3: Cross multiply
102.74x = 154.16 × 44.99 - Step 4: Simplify right side
102.74x = 6,934.66 - Step 5: Solve for x
x = 6,934.66/102.74 - Step 6: Final answer
x = 67.50
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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.