Finding the Fourth Proportional to 101,170.94, 139,609.92 and 55,847.80
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Solution
The fourth proportional to 101,170.94, 139,609.92 and 55,847.80 is: 77,066.66
Step by Step Solution
- Step 1: Write the proportion equation
101,170.94 : 139,609.92 = 55,847.80 : x - Step 2: Convert to fraction form
101,170.94/139,609.92 = 55,847.80/x - Step 3: Cross multiply
101,170.94x = 139,609.92 × 55,847.80 - Step 4: Simplify right side
101,170.94x = 7,796,906,890.18 - Step 5: Solve for x
x = 7,796,906,890.18/101,170.94 - Step 6: Final answer
x = 77,066.66
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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.