Finding the Fourth Proportional to 125.84, 188.91 and 96.99
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Solution
The fourth proportional to 125.84, 188.91 and 96.99 is: 145.60
Step by Step Solution
- Step 1: Write the proportion equation
125.84 : 188.91 = 96.99 : x - Step 2: Convert to fraction form
125.84/188.91 = 96.99/x - Step 3: Cross multiply
125.84x = 188.91 × 96.99 - Step 4: Simplify right side
125.84x = 18,322.38 - Step 5: Solve for x
x = 18,322.38/125.84 - Step 6: Final answer
x = 145.60
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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.