Finding the Fourth Proportional to 158,390.26, 218,578.50 and 86,770.18
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Solution
The fourth proportional to 158,390.26, 218,578.50 and 86,770.18 is: 119,742.82
Step by Step Solution
- Step 1: Write the proportion equation
158,390.26 : 218,578.50 = 86,770.18 : x - Step 2: Convert to fraction form
158,390.26/218,578.50 = 86,770.18/x - Step 3: Cross multiply
158,390.26x = 218,578.50 × 86,770.18 - Step 4: Simplify right side
158,390.26x = 18,966,095,789.13 - Step 5: Solve for x
x = 18,966,095,789.13/158,390.26 - Step 6: Final answer
x = 119,742.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.