Finding the Fourth Proportional to 120,360.63, 166,086.11 and 71,952.99
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Solution
The fourth proportional to 120,360.63, 166,086.11 and 71,952.99 is: 99,288.21
Step by Step Solution
- Step 1: Write the proportion equation
120,360.63 : 166,086.11 = 71,952.99 : x - Step 2: Convert to fraction form
120,360.63/166,086.11 = 71,952.99/x - Step 3: Cross multiply
120,360.63x = 166,086.11 × 71,952.99 - Step 4: Simplify right side
120,360.63x = 11,950,391,852.20 - Step 5: Solve for x
x = 11,950,391,852.20/120,360.63 - Step 6: Final answer
x = 99,288.21
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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.