Finding the Fourth Proportional to 135,877.80, 187,514.88 and 75,450.99
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Solution
The fourth proportional to 135,877.80, 187,514.88 and 75,450.99 is: 104,124.32
Step by Step Solution
- Step 1: Write the proportion equation
135,877.80 : 187,514.88 = 75,450.99 : x - Step 2: Convert to fraction form
135,877.80/187,514.88 = 75,450.99/x - Step 3: Cross multiply
135,877.80x = 187,514.88 × 75,450.99 - Step 4: Simplify right side
135,877.80x = 14,148,183,335.73 - Step 5: Solve for x
x = 14,148,183,335.73/135,877.80 - Step 6: Final answer
x = 104,124.32
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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.