Finding the Fourth Proportional to 121,396.47, 182,113.46 and 41,415.70
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Solution
The fourth proportional to 121,396.47, 182,113.46 and 41,415.70 is: 62,129.95
Step by Step Solution
- Step 1: Write the proportion equation
121,396.47 : 182,113.46 = 41,415.70 : x - Step 2: Convert to fraction form
121,396.47/182,113.46 = 41,415.70/x - Step 3: Cross multiply
121,396.47x = 182,113.46 × 41,415.70 - Step 4: Simplify right side
121,396.47x = 7,542,356,218.24 - Step 5: Solve for x
x = 7,542,356,218.24/121,396.47 - Step 6: Final answer
x = 62,129.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.