Finding the Fourth Proportional to 120,903.29, 166,670.70 and 84,491.69
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Solution
The fourth proportional to 120,903.29, 166,670.70 and 84,491.69 is: 116,475.65
Step by Step Solution
- Step 1: Write the proportion equation
120,903.29 : 166,670.70 = 84,491.69 : x - Step 2: Convert to fraction form
120,903.29/166,670.70 = 84,491.69/x - Step 3: Cross multiply
120,903.29x = 166,670.70 × 84,491.69 - Step 4: Simplify right side
120,903.29x = 14,082,288,817.14 - Step 5: Solve for x
x = 14,082,288,817.14/120,903.29 - Step 6: Final answer
x = 116,475.65
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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.