Finding the Fourth Proportional to 158,212.14, 218,331.45 and 86,591.99
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Solution
The fourth proportional to 158,212.14, 218,331.45 and 86,591.99 is: 119,496.23
Step by Step Solution
- Step 1: Write the proportion equation
158,212.14 : 218,331.45 = 86,591.99 : x - Step 2: Convert to fraction form
158,212.14/218,331.45 = 86,591.99/x - Step 3: Cross multiply
158,212.14x = 218,331.45 × 86,591.99 - Step 4: Simplify right side
158,212.14x = 18,905,754,735.09 - Step 5: Solve for x
x = 18,905,754,735.09/158,212.14 - Step 6: Final answer
x = 119,496.23
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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.