Finding the Fourth Proportional to 110,129.97, 152,072.43 and 69,915.09
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Solution
The fourth proportional to 110,129.97, 152,072.43 and 69,915.09 is: 96,541.91
Step by Step Solution
- Step 1: Write the proportion equation
110,129.97 : 152,072.43 = 69,915.09 : x - Step 2: Convert to fraction form
110,129.97/152,072.43 = 69,915.09/x - Step 3: Cross multiply
110,129.97x = 152,072.43 × 69,915.09 - Step 4: Simplify right side
110,129.97x = 10,632,157,629.97 - Step 5: Solve for x
x = 10,632,157,629.97/110,129.97 - Step 6: Final answer
x = 96,541.91
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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.