Finding the Fourth Proportional to 130.08, 194.94 and 75.99
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Solution
The fourth proportional to 130.08, 194.94 and 75.99 is: 113.88
Step by Step Solution
- Step 1: Write the proportion equation
130.08 : 194.94 = 75.99 : x - Step 2: Convert to fraction form
130.08/194.94 = 75.99/x - Step 3: Cross multiply
130.08x = 194.94 × 75.99 - Step 4: Simplify right side
130.08x = 14,813.49 - Step 5: Solve for x
x = 14,813.49/130.08 - Step 6: Final answer
x = 113.88
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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.