Finding the Fourth Proportional to 130.21, 195.01 and 69.26
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Solution
The fourth proportional to 130.21, 195.01 and 69.26 is: 103.72
Step by Step Solution
- Step 1: Write the proportion equation
130.21 : 195.01 = 69.26 : x - Step 2: Convert to fraction form
130.21/195.01 = 69.26/x - Step 3: Cross multiply
130.21x = 195.01 × 69.26 - Step 4: Simplify right side
130.21x = 13,505.24 - Step 5: Solve for x
x = 13,505.24/130.21 - Step 6: Final answer
x = 103.72
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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.