Finding the Fourth Proportional to 130.13, 195.02 and 69.21
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Solution
The fourth proportional to 130.13, 195.02 and 69.21 is: 103.72
Step by Step Solution
- Step 1: Write the proportion equation
130.13 : 195.02 = 69.21 : x - Step 2: Convert to fraction form
130.13/195.02 = 69.21/x - Step 3: Cross multiply
130.13x = 195.02 × 69.21 - Step 4: Simplify right side
130.13x = 13,496.99 - Step 5: Solve for x
x = 13,496.99/130.13 - Step 6: Final answer
x = 103.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.