Finding the Fourth Proportional to 151,564.70, 209,205.18 and 87,918.14
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Solution
The fourth proportional to 151,564.70, 209,205.18 and 87,918.14 is: 121,353.65
Step by Step Solution
- Step 1: Write the proportion equation
151,564.70 : 209,205.18 = 87,918.14 : x - Step 2: Convert to fraction form
151,564.70/209,205.18 = 87,918.14/x - Step 3: Cross multiply
151,564.70x = 209,205.18 × 87,918.14 - Step 4: Simplify right side
151,564.70x = 18,392,929,257.94 - Step 5: Solve for x
x = 18,392,929,257.94/151,564.70 - Step 6: Final answer
x = 121,353.65
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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.