Finding the Fourth Proportional to 125,506.82, 187,789.68 and 74,720.08
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Solution
The fourth proportional to 125,506.82, 187,789.68 and 74,720.08 is: 111,799.98
Step by Step Solution
- Step 1: Write the proportion equation
125,506.82 : 187,789.68 = 74,720.08 : x - Step 2: Convert to fraction form
125,506.82/187,789.68 = 74,720.08/x - Step 3: Cross multiply
125,506.82x = 187,789.68 × 74,720.08 - Step 4: Simplify right side
125,506.82x = 14,031,659,912.77 - Step 5: Solve for x
x = 14,031,659,912.77/125,506.82 - Step 6: Final answer
x = 111,799.98
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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.