Finding the Fourth Proportional to 129,964.23, 194,970.66 and 41,193.90
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Solution
The fourth proportional to 129,964.23, 194,970.66 and 41,193.90 is: 61,798.56
Step by Step Solution
- Step 1: Write the proportion equation
129,964.23 : 194,970.66 = 41,193.90 : x - Step 2: Convert to fraction form
129,964.23/194,970.66 = 41,193.90/x - Step 3: Cross multiply
129,964.23x = 194,970.66 × 41,193.90 - Step 4: Simplify right side
129,964.23x = 8,031,601,870.97 - Step 5: Solve for x
x = 8,031,601,870.97/129,964.23 - Step 6: Final answer
x = 61,798.56
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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.