Finding the Fourth Proportional to 135,749.25, 203,653.12 and 40,971.50
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Solution
The fourth proportional to 135,749.25, 203,653.12 and 40,971.50 is: 61,466.08
Step by Step Solution
- Step 1: Write the proportion equation
135,749.25 : 203,653.12 = 40,971.50 : x - Step 2: Convert to fraction form
135,749.25/203,653.12 = 40,971.50/x - Step 3: Cross multiply
135,749.25x = 203,653.12 × 40,971.50 - Step 4: Simplify right side
135,749.25x = 8,343,973,806.08 - Step 5: Solve for x
x = 8,343,973,806.08/135,749.25 - Step 6: Final answer
x = 61,466.08
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1.5x scale
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.