Finding the Fourth Proportional to 120,315.62, 166,037.92 and 66,599.12
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Solution
The fourth proportional to 120,315.62, 166,037.92 and 66,599.12 is: 91,908.09
Step by Step Solution
- Step 1: Write the proportion equation
120,315.62 : 166,037.92 = 66,599.12 : x - Step 2: Convert to fraction form
120,315.62/166,037.92 = 66,599.12/x - Step 3: Cross multiply
120,315.62x = 166,037.92 × 66,599.12 - Step 4: Simplify right side
120,315.62x = 11,057,979,358.63 - Step 5: Solve for x
x = 11,057,979,358.63/120,315.62 - Step 6: Final answer
x = 91,908.09
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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.