Finding the Fourth Proportional to 125,122.44, 172,634.58 and 71,388.12
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Solution
The fourth proportional to 125,122.44, 172,634.58 and 71,388.12 is: 98,495.99
Step by Step Solution
- Step 1: Write the proportion equation
125,122.44 : 172,634.58 = 71,388.12 : x - Step 2: Convert to fraction form
125,122.44/172,634.58 = 71,388.12/x - Step 3: Cross multiply
125,122.44x = 172,634.58 × 71,388.12 - Step 4: Simplify right side
125,122.44x = 12,324,058,113.19 - Step 5: Solve for x
x = 12,324,058,113.19/125,122.44 - Step 6: Final answer
x = 98,495.99
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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.