Finding the Fourth Proportional to 115,012.23, 158,733.84 and 69,074.97
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Solution
The fourth proportional to 115,012.23, 158,733.84 and 69,074.97 is: 95,333.65
Step by Step Solution
- Step 1: Write the proportion equation
115,012.23 : 158,733.84 = 69,074.97 : x - Step 2: Convert to fraction form
115,012.23/158,733.84 = 69,074.97/x - Step 3: Cross multiply
115,012.23x = 158,733.84 × 69,074.97 - Step 4: Simplify right side
115,012.23x = 10,964,535,235.98 - Step 5: Solve for x
x = 10,964,535,235.98/115,012.23 - Step 6: Final answer
x = 95,333.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.