Finding the Fourth Proportional to 136.47, 204.42 and 129.99
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Solution
The fourth proportional to 136.47, 204.42 and 129.99 is: 194.71
Step by Step Solution
- Step 1: Write the proportion equation
136.47 : 204.42 = 129.99 : x - Step 2: Convert to fraction form
136.47/204.42 = 129.99/x - Step 3: Cross multiply
136.47x = 204.42 × 129.99 - Step 4: Simplify right side
136.47x = 26,572.56 - Step 5: Solve for x
x = 26,572.56/136.47 - Step 6: Final answer
x = 194.71
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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.