Finding the Fourth Proportional to 125,539.17, 173,274.21 and 71,855.31
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Solution
The fourth proportional to 125,539.17, 173,274.21 and 71,855.31 is: 99,177.59
Step by Step Solution
- Step 1: Write the proportion equation
125,539.17 : 173,274.21 = 71,855.31 : x - Step 2: Convert to fraction form
125,539.17/173,274.21 = 71,855.31/x - Step 3: Cross multiply
125,539.17x = 173,274.21 × 71,855.31 - Step 4: Simplify right side
125,539.17x = 12,450,672,074.56 - Step 5: Solve for x
x = 12,450,672,074.56/125,539.17 - Step 6: Final answer
x = 99,177.59
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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.