Finding the Fourth Proportional to 139,415.37, 192,394.38 and 75,753.18
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Solution
The fourth proportional to 139,415.37, 192,394.38 and 75,753.18 is: 104,540.02
Step by Step Solution
- Step 1: Write the proportion equation
139,415.37 : 192,394.38 = 75,753.18 : x - Step 2: Convert to fraction form
139,415.37/192,394.38 = 75,753.18/x - Step 3: Cross multiply
139,415.37x = 192,394.38 × 75,753.18 - Step 4: Simplify right side
139,415.37x = 14,574,486,099.13 - Step 5: Solve for x
x = 14,574,486,099.13/139,415.37 - Step 6: Final answer
x = 104,540.02
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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.