Finding the Fourth Proportional to 101,163.44, 139,657.98 and 73,908.92
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Solution
The fourth proportional to 101,163.44, 139,657.98 and 73,908.92 is: 102,032.62
Step by Step Solution
- Step 1: Write the proportion equation
101,163.44 : 139,657.98 = 73,908.92 : x - Step 2: Convert to fraction form
101,163.44/139,657.98 = 73,908.92/x - Step 3: Cross multiply
101,163.44x = 139,657.98 × 73,908.92 - Step 4: Simplify right side
101,163.44x = 10,321,970,471.18 - Step 5: Solve for x
x = 10,321,970,471.18/101,163.44 - Step 6: Final answer
x = 102,032.62
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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.