Finding the Fourth Proportional to 122,249.71, 168,704.49 and 68,534.74
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Solution
The fourth proportional to 122,249.71, 168,704.49 and 68,534.74 is: 94,577.88
Step by Step Solution
- Step 1: Write the proportion equation
122,249.71 : 168,704.49 = 68,534.74 : x - Step 2: Convert to fraction form
122,249.71/168,704.49 = 68,534.74/x - Step 3: Cross multiply
122,249.71x = 168,704.49 × 68,534.74 - Step 4: Simplify right side
122,249.71x = 11,562,118,441.36 - Step 5: Solve for x
x = 11,562,118,441.36/122,249.71 - Step 6: Final answer
x = 94,577.88
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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.