Finding the Fourth Proportional to 129,092.68, 193,639.18 and 40,346.65
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Solution
The fourth proportional to 129,092.68, 193,639.18 and 40,346.65 is: 60,520.03
Step by Step Solution
- Step 1: Write the proportion equation
129,092.68 : 193,639.18 = 40,346.65 : x - Step 2: Convert to fraction form
129,092.68/193,639.18 = 40,346.65/x - Step 3: Cross multiply
129,092.68x = 193,639.18 × 40,346.65 - Step 4: Simplify right side
129,092.68x = 7,812,692,504.11 - Step 5: Solve for x
x = 7,812,692,504.11/129,092.68 - Step 6: Final answer
x = 60,520.03
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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.