Finding the Fourth Proportional to 136,171.65, 187,914.17 and 75,740.99
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Solution
The fourth proportional to 136,171.65, 187,914.17 and 75,740.99 is: 104,521.07
Step by Step Solution
- Step 1: Write the proportion equation
136,171.65 : 187,914.17 = 75,740.99 : x - Step 2: Convert to fraction form
136,171.65/187,914.17 = 75,740.99/x - Step 3: Cross multiply
136,171.65x = 187,914.17 × 75,740.99 - Step 4: Simplify right side
136,171.65x = 14,232,805,929.97 - Step 5: Solve for x
x = 14,232,805,929.97/136,171.65 - Step 6: Final answer
x = 104,521.07
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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.