Finding the Fourth Proportional to 158,124.96, 218,211.17 and 86,505.57
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Solution
The fourth proportional to 158,124.96, 218,211.17 and 86,505.57 is: 119,376.99
Step by Step Solution
- Step 1: Write the proportion equation
158,124.96 : 218,211.17 = 86,505.57 : x - Step 2: Convert to fraction form
158,124.96/218,211.17 = 86,505.57/x - Step 3: Cross multiply
158,124.96x = 218,211.17 × 86,505.57 - Step 4: Simplify right side
158,124.96x = 18,876,481,208.69 - Step 5: Solve for x
x = 18,876,481,208.69/158,124.96 - Step 6: Final answer
x = 119,376.99
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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.