Finding the Fourth Proportional to 129,278.68, 193,784.24 and 49,295.12
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Solution
The fourth proportional to 129,278.68, 193,784.24 and 49,295.12 is: 73,891.66
Step by Step Solution
- Step 1: Write the proportion equation
129,278.68 : 193,784.24 = 49,295.12 : x - Step 2: Convert to fraction form
129,278.68/193,784.24 = 49,295.12/x - Step 3: Cross multiply
129,278.68x = 193,784.24 × 49,295.12 - Step 4: Simplify right side
129,278.68x = 9,552,616,519.23 - Step 5: Solve for x
x = 9,552,616,519.23/129,278.68 - Step 6: Final answer
x = 73,891.66
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1.5x scale
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.