Finding the Fourth Proportional to 107,042.88, 159,913.26 and 69,295.44
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Solution
The fourth proportional to 107,042.88, 159,913.26 and 69,295.44 is: 103,521.69
Step by Step Solution
- Step 1: Write the proportion equation
107,042.88 : 159,913.26 = 69,295.44 : x - Step 2: Convert to fraction form
107,042.88/159,913.26 = 69,295.44/x - Step 3: Cross multiply
107,042.88x = 159,913.26 × 69,295.44 - Step 4: Simplify right side
107,042.88x = 11,081,259,713.53 - Step 5: Solve for x
x = 11,081,259,713.53/107,042.88 - Step 6: Final answer
x = 103,521.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.