Finding the Fourth Proportional to 129,808.26, 179,135.30 and 73,219.63
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Solution
The fourth proportional to 129,808.26, 179,135.30 and 73,219.63 is: 101,043.03
Step by Step Solution
- Step 1: Write the proportion equation
129,808.26 : 179,135.30 = 73,219.63 : x - Step 2: Convert to fraction form
129,808.26/179,135.30 = 73,219.63/x - Step 3: Cross multiply
129,808.26x = 179,135.30 × 73,219.63 - Step 4: Simplify right side
129,808.26x = 13,116,220,019.84 - Step 5: Solve for x
x = 13,116,220,019.84/129,808.26 - Step 6: Final answer
x = 101,043.03
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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.