Finding the Fourth Proportional to 120,850.48, 166,786.74 and 73,130.08
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Solution
The fourth proportional to 120,850.48, 166,786.74 and 73,130.08 is: 100,927.42
Step by Step Solution
- Step 1: Write the proportion equation
120,850.48 : 166,786.74 = 73,130.08 : x - Step 2: Convert to fraction form
120,850.48/166,786.74 = 73,130.08/x - Step 3: Cross multiply
120,850.48x = 166,786.74 × 73,130.08 - Step 4: Simplify right side
120,850.48x = 12,197,127,639.14 - Step 5: Solve for x
x = 12,197,127,639.14/120,850.48 - Step 6: Final answer
x = 100,927.42
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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.