Finding the Fourth Proportional to 138,166.40, 207,249.60 and 135,094.40
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Solution
The fourth proportional to 138,166.40, 207,249.60 and 135,094.40 is: 202,641.60
Step by Step Solution
- Step 1: Write the proportion equation
138,166.40 : 207,249.60 = 135,094.40 : x - Step 2: Convert to fraction form
138,166.40/207,249.60 = 135,094.40/x - Step 3: Cross multiply
138,166.40x = 207,249.60 × 135,094.40 - Step 4: Simplify right side
138,166.40x = 27,998,260,362.24 - Step 5: Solve for x
x = 27,998,260,362.24/138,166.40 - Step 6: Final answer
x = 202,641.60
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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.