Finding the Fourth Proportional to 135,942.26, 187,691.03 and 85,027.07
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Solution
The fourth proportional to 135,942.26, 187,691.03 and 85,027.07 is: 117,394.09
Step by Step Solution
- Step 1: Write the proportion equation
135,942.26 : 187,691.03 = 85,027.07 : x - Step 2: Convert to fraction form
135,942.26/187,691.03 = 85,027.07/x - Step 3: Cross multiply
135,942.26x = 187,691.03 × 85,027.07 - Step 4: Simplify right side
135,942.26x = 15,958,818,346.18 - Step 5: Solve for x
x = 15,958,818,346.18/135,942.26 - Step 6: Final answer
x = 117,394.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.