Finding the Fourth Proportional to 129,304.78, 193,957.40 and 40,565.28
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Solution
The fourth proportional to 129,304.78, 193,957.40 and 40,565.28 is: 60,847.99
Step by Step Solution
- Step 1: Write the proportion equation
129,304.78 : 193,957.40 = 40,565.28 : x - Step 2: Convert to fraction form
129,304.78/193,957.40 = 40,565.28/x - Step 3: Cross multiply
129,304.78x = 193,957.40 × 40,565.28 - Step 4: Simplify right side
129,304.78x = 7,867,936,239.07 - Step 5: Solve for x
x = 7,867,936,239.07/129,304.78 - Step 6: Final answer
x = 60,847.99
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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.