Finding the Fourth Proportional to 125,538.36, 173,170.62 and 75,208.20
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Solution
The fourth proportional to 125,538.36, 173,170.62 and 75,208.20 is: 103,743.99
Step by Step Solution
- Step 1: Write the proportion equation
125,538.36 : 173,170.62 = 75,208.20 : x - Step 2: Convert to fraction form
125,538.36/173,170.62 = 75,208.20/x - Step 3: Cross multiply
125,538.36x = 173,170.62 × 75,208.20 - Step 4: Simplify right side
125,538.36x = 13,023,850,623.08 - Step 5: Solve for x
x = 13,023,850,623.08/125,538.36 - Step 6: Final answer
x = 103,743.99
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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.