Finding the Fourth Proportional to 149,163.42, 205,799.10 and 84,621.98
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Solution
The fourth proportional to 149,163.42, 205,799.10 and 84,621.98 is: 116,752.00
Step by Step Solution
- Step 1: Write the proportion equation
149,163.42 : 205,799.10 = 84,621.98 : x - Step 2: Convert to fraction form
149,163.42/205,799.10 = 84,621.98/x - Step 3: Cross multiply
149,163.42x = 205,799.10 × 84,621.98 - Step 4: Simplify right side
149,163.42x = 17,415,127,324.22 - Step 5: Solve for x
x = 17,415,127,324.22/149,163.42 - Step 6: Final answer
x = 116,752.00
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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.