Finding the Fourth Proportional to 135,258.72, 202,721.91 and 75,969.75
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Solution
The fourth proportional to 135,258.72, 202,721.91 and 75,969.75 is: 113,861.29
Step by Step Solution
- Step 1: Write the proportion equation
135,258.72 : 202,721.91 = 75,969.75 : x - Step 2: Convert to fraction form
135,258.72/202,721.91 = 75,969.75/x - Step 3: Cross multiply
135,258.72x = 202,721.91 × 75,969.75 - Step 4: Simplify right side
135,258.72x = 15,400,732,822.22 - Step 5: Solve for x
x = 15,400,732,822.22/135,258.72 - Step 6: Final answer
x = 113,861.29
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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.