Finding the Fourth Proportional to 129,529.65, 194,320.67 and 54,649.98
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Solution
The fourth proportional to 129,529.65, 194,320.67 and 54,649.98 is: 81,986.02
Step by Step Solution
- Step 1: Write the proportion equation
129,529.65 : 194,320.67 = 54,649.98 : x - Step 2: Convert to fraction form
129,529.65/194,320.67 = 54,649.98/x - Step 3: Cross multiply
129,529.65x = 194,320.67 × 54,649.98 - Step 4: Simplify right side
129,529.65x = 10,619,620,763.24 - Step 5: Solve for x
x = 10,619,620,763.24/129,529.65 - Step 6: Final answer
x = 81,986.02
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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.