Finding the Fourth Proportional to 135,757.42, 203,665.38 and 40,979.66
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Solution
The fourth proportional to 135,757.42, 203,665.38 and 40,979.66 is: 61,478.32
Step by Step Solution
- Step 1: Write the proportion equation
135,757.42 : 203,665.38 = 40,979.66 : x - Step 2: Convert to fraction form
135,757.42/203,665.38 = 40,979.66/x - Step 3: Cross multiply
135,757.42x = 203,665.38 × 40,979.66 - Step 4: Simplify right side
135,757.42x = 8,346,138,026.17 - Step 5: Solve for x
x = 8,346,138,026.17/135,757.42 - Step 6: Final answer
x = 61,478.32
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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.