Finding the Fourth Proportional to 113,163.24, 169,781.70 and 53,991.25
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Solution
The fourth proportional to 113,163.24, 169,781.70 and 53,991.25 is: 81,004.45
Step by Step Solution
- Step 1: Write the proportion equation
113,163.24 : 169,781.70 = 53,991.25 : x - Step 2: Convert to fraction form
113,163.24/169,781.70 = 53,991.25/x - Step 3: Cross multiply
113,163.24x = 169,781.70 × 53,991.25 - Step 4: Simplify right side
113,163.24x = 9,166,726,210.13 - Step 5: Solve for x
x = 9,166,726,210.13/113,163.24 - Step 6: Final answer
x = 81,004.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.