Finding the Fourth Proportional to 135,886.38, 203,736.53 and 69,197.42
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Solution
The fourth proportional to 135,886.38, 203,736.53 and 69,197.42 is: 103,748.75
Step by Step Solution
- Step 1: Write the proportion equation
135,886.38 : 203,736.53 = 69,197.42 : x - Step 2: Convert to fraction form
135,886.38/203,736.53 = 69,197.42/x - Step 3: Cross multiply
135,886.38x = 203,736.53 × 69,197.42 - Step 4: Simplify right side
135,886.38x = 14,098,042,235.75 - Step 5: Solve for x
x = 14,098,042,235.75/135,886.38 - Step 6: Final answer
x = 103,748.75
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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.