Finding the Fourth Proportional to 76,249.18, 114,125.37 and 68,974.30
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Solution
The fourth proportional to 76,249.18, 114,125.37 and 68,974.30 is: 103,236.75
Step by Step Solution
- Step 1: Write the proportion equation
76,249.18 : 114,125.37 = 68,974.30 : x - Step 2: Convert to fraction form
76,249.18/114,125.37 = 68,974.30/x - Step 3: Cross multiply
76,249.18x = 114,125.37 × 68,974.30 - Step 4: Simplify right side
76,249.18x = 7,871,717,507.99 - Step 5: Solve for x
x = 7,871,717,507.99/76,249.18 - Step 6: Final answer
x = 103,236.75
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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.