Finding the Fourth Proportional to 136,465.04, 204,658.68 and 86,469.68
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Solution
The fourth proportional to 136,465.04, 204,658.68 and 86,469.68 is: 129,679.88
Step by Step Solution
- Step 1: Write the proportion equation
136,465.04 : 204,658.68 = 86,469.68 : x - Step 2: Convert to fraction form
136,465.04/204,658.68 = 86,469.68/x - Step 3: Cross multiply
136,465.04x = 204,658.68 × 86,469.68 - Step 4: Simplify right side
136,465.04x = 17,696,770,568.82 - Step 5: Solve for x
x = 17,696,770,568.82/136,465.04 - Step 6: Final answer
x = 129,679.88
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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.