Finding the Fourth Proportional to 136,911.40, 205,374.44 and 43,424.44
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Solution
The fourth proportional to 136,911.40, 205,374.44 and 43,424.44 is: 65,138.99
Step by Step Solution
- Step 1: Write the proportion equation
136,911.40 : 205,374.44 = 43,424.44 : x - Step 2: Convert to fraction form
136,911.40/205,374.44 = 43,424.44/x - Step 3: Cross multiply
136,911.40x = 205,374.44 × 43,424.44 - Step 4: Simplify right side
136,911.40x = 8,918,270,047.31 - Step 5: Solve for x
x = 8,918,270,047.31/136,911.40 - Step 6: Final answer
x = 65,138.99
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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.