Finding the Fourth Proportional to 145,906.14, 201,350.40 and 78,838.14
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Solution
The fourth proportional to 145,906.14, 201,350.40 and 78,838.14 is: 108,796.59
Step by Step Solution
- Step 1: Write the proportion equation
145,906.14 : 201,350.40 = 78,838.14 : x - Step 2: Convert to fraction form
145,906.14/201,350.40 = 78,838.14/x - Step 3: Cross multiply
145,906.14x = 201,350.40 × 78,838.14 - Step 4: Simplify right side
145,906.14x = 15,874,091,024.26 - Step 5: Solve for x
x = 15,874,091,024.26/145,906.14 - Step 6: Final answer
x = 108,796.59
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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.