Finding the Fourth Proportional to 120,362.05, 180,276.72 and 82,320.99
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Solution
The fourth proportional to 120,362.05, 180,276.72 and 82,320.99 is: 123,299.31
Step by Step Solution
- Step 1: Write the proportion equation
120,362.05 : 180,276.72 = 82,320.99 : x - Step 2: Convert to fraction form
120,362.05/180,276.72 = 82,320.99/x - Step 3: Cross multiply
120,362.05x = 180,276.72 × 82,320.99 - Step 4: Simplify right side
120,362.05x = 14,840,558,064.35 - Step 5: Solve for x
x = 14,840,558,064.35/120,362.05 - Step 6: Final answer
x = 123,299.31
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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.