Finding the Fourth Proportional to 129,852.10, 194,741.70 and 41,132.80
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Solution
The fourth proportional to 129,852.10, 194,741.70 and 41,132.80 is: 61,687.65
Step by Step Solution
- Step 1: Write the proportion equation
129,852.10 : 194,741.70 = 41,132.80 : x - Step 2: Convert to fraction form
129,852.10/194,741.70 = 41,132.80/x - Step 3: Cross multiply
129,852.10x = 194,741.70 × 41,132.80 - Step 4: Simplify right side
129,852.10x = 8,010,271,397.76 - Step 5: Solve for x
x = 8,010,271,397.76/129,852.10 - Step 6: Final answer
x = 61,687.65
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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.