Finding the Fourth Proportional to 145,902.42, 201,343.68 and 81,371.34
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Solution
The fourth proportional to 145,902.42, 201,343.68 and 81,371.34 is: 112,291.52
Step by Step Solution
- Step 1: Write the proportion equation
145,902.42 : 201,343.68 = 81,371.34 : x - Step 2: Convert to fraction form
145,902.42/201,343.68 = 81,371.34/x - Step 3: Cross multiply
145,902.42x = 201,343.68 × 81,371.34 - Step 4: Simplify right side
145,902.42x = 16,383,605,042.13 - Step 5: Solve for x
x = 16,383,605,042.13/145,902.42 - Step 6: Final answer
x = 112,291.52
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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.