Finding the Fourth Proportional to 136,246.20, 204,369.30 and 77,197.20
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Solution
The fourth proportional to 136,246.20, 204,369.30 and 77,197.20 is: 115,795.80
Step by Step Solution
- Step 1: Write the proportion equation
136,246.20 : 204,369.30 = 77,197.20 : x - Step 2: Convert to fraction form
136,246.20/204,369.30 = 77,197.20/x - Step 3: Cross multiply
136,246.20x = 204,369.30 × 77,197.20 - Step 4: Simplify right side
136,246.20x = 15,776,737,725.96 - Step 5: Solve for x
x = 15,776,737,725.96/136,246.20 - Step 6: Final answer
x = 115,795.80
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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.