Finding the Fourth Proportional to 125,930.47, 173,745.01 and 71,473.75
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Solution
The fourth proportional to 125,930.47, 173,745.01 and 71,473.75 is: 98,611.62
Step by Step Solution
- Step 1: Write the proportion equation
125,930.47 : 173,745.01 = 71,473.75 : x - Step 2: Convert to fraction form
125,930.47/173,745.01 = 71,473.75/x - Step 3: Cross multiply
125,930.47x = 173,745.01 × 71,473.75 - Step 4: Simplify right side
125,930.47x = 12,418,207,408.49 - Step 5: Solve for x
x = 12,418,207,408.49/125,930.47 - Step 6: Final answer
x = 98,611.62
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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.