Finding the Fourth Proportional to 207,141.84, 285,812.88 and 121,084.19
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Solution
The fourth proportional to 207,141.84, 285,812.88 and 121,084.19 is: 167,071.12
Step by Step Solution
- Step 1: Write the proportion equation
207,141.84 : 285,812.88 = 121,084.19 : x - Step 2: Convert to fraction form
207,141.84/285,812.88 = 121,084.19/x - Step 3: Cross multiply
207,141.84x = 285,812.88 × 121,084.19 - Step 4: Simplify right side
207,141.84x = 34,607,419,897.77 - Step 5: Solve for x
x = 34,607,419,897.77/207,141.84 - Step 6: Final answer
x = 167,071.12
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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.