Finding the Fourth Proportional to 129,634.70, 194,452.05 and 110,607.80
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Solution
The fourth proportional to 129,634.70, 194,452.05 and 110,607.80 is: 165,911.70
Step by Step Solution
- Step 1: Write the proportion equation
129,634.70 : 194,452.05 = 110,607.80 : x - Step 2: Convert to fraction form
129,634.70/194,452.05 = 110,607.80/x - Step 3: Cross multiply
129,634.70x = 194,452.05 × 110,607.80 - Step 4: Simplify right side
129,634.70x = 21,507,913,455.99 - Step 5: Solve for x
x = 21,507,913,455.99/129,634.70 - Step 6: Final answer
x = 165,911.70
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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.