Finding the Fourth Proportional to 151,817.75, 209,508.50 and 84,749.75
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Solution
The fourth proportional to 151,817.75, 209,508.50 and 84,749.75 is: 116,954.66
Step by Step Solution
- Step 1: Write the proportion equation
151,817.75 : 209,508.50 = 84,749.75 : x - Step 2: Convert to fraction form
151,817.75/209,508.50 = 84,749.75/x - Step 3: Cross multiply
151,817.75x = 209,508.50 × 84,749.75 - Step 4: Simplify right side
151,817.75x = 17,755,792,997.88 - Step 5: Solve for x
x = 17,755,792,997.88/151,817.75 - Step 6: Final answer
x = 116,954.66
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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.