Finding the Fourth Proportional to 136,175.90, 204,045.15 and 128,302.70
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Solution
The fourth proportional to 136,175.90, 204,045.15 and 128,302.70 is: 192,247.99
Step by Step Solution
- Step 1: Write the proportion equation
136,175.90 : 204,045.15 = 128,302.70 : x - Step 2: Convert to fraction form
136,175.90/204,045.15 = 128,302.70/x - Step 3: Cross multiply
136,175.90x = 204,045.15 × 128,302.70 - Step 4: Simplify right side
136,175.90x = 26,179,543,666.91 - Step 5: Solve for x
x = 26,179,543,666.91/136,175.90 - Step 6: Final answer
x = 192,247.99
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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.