Finding the Fourth Proportional to 129,529.62, 194,320.62 and 54,649.94
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Solution
The fourth proportional to 129,529.62, 194,320.62 and 54,649.94 is: 81,985.95
Step by Step Solution
- Step 1: Write the proportion equation
129,529.62 : 194,320.62 = 54,649.94 : x - Step 2: Convert to fraction form
129,529.62/194,320.62 = 54,649.94/x - Step 3: Cross multiply
129,529.62x = 194,320.62 × 54,649.94 - Step 4: Simplify right side
129,529.62x = 10,619,609,252.16 - Step 5: Solve for x
x = 10,619,609,252.16/129,529.62 - Step 6: Final answer
x = 81,985.95
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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.