Finding the Fourth Proportional to 129,329.19, 194,001.99 and 40,586.20
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Solution
The fourth proportional to 129,329.19, 194,001.99 and 40,586.20 is: 60,881.87
Step by Step Solution
- Step 1: Write the proportion equation
129,329.19 : 194,001.99 = 40,586.20 : x - Step 2: Convert to fraction form
129,329.19/194,001.99 = 40,586.20/x - Step 3: Cross multiply
129,329.19x = 194,001.99 × 40,586.20 - Step 4: Simplify right side
129,329.19x = 7,873,803,566.54 - Step 5: Solve for x
x = 7,873,803,566.54/129,329.19 - Step 6: Final answer
x = 60,881.87
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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.