Finding the Fourth Proportional to 137,866.36, 206,902.47 and 102,409.55
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Solution
The fourth proportional to 137,866.36, 206,902.47 and 102,409.55 is: 153,690.79
Step by Step Solution
- Step 1: Write the proportion equation
137,866.36 : 206,902.47 = 102,409.55 : x - Step 2: Convert to fraction form
137,866.36/206,902.47 = 102,409.55/x - Step 3: Cross multiply
137,866.36x = 206,902.47 × 102,409.55 - Step 4: Simplify right side
137,866.36x = 21,188,788,846.59 - Step 5: Solve for x
x = 21,188,788,846.59/137,866.36 - Step 6: Final answer
x = 153,690.79
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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.