Finding the Fourth Proportional to 129,430.45, 194,173.40 and 73,297.09
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Solution
The fourth proportional to 129,430.45, 194,173.40 and 73,297.09 is: 109,961.33
Step by Step Solution
- Step 1: Write the proportion equation
129,430.45 : 194,173.40 = 73,297.09 : x - Step 2: Convert to fraction form
129,430.45/194,173.40 = 73,297.09/x - Step 3: Cross multiply
129,430.45x = 194,173.40 × 73,297.09 - Step 4: Simplify right side
129,430.45x = 14,232,344,808.92 - Step 5: Solve for x
x = 14,232,344,808.92/129,430.45 - Step 6: Final answer
x = 109,961.33
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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.