Finding the Fourth Proportional to 157,801.68, 236,243.16 and 82,743.84
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Solution
The fourth proportional to 157,801.68, 236,243.16 and 82,743.84 is: 123,874.89
Step by Step Solution
- Step 1: Write the proportion equation
157,801.68 : 236,243.16 = 82,743.84 : x - Step 2: Convert to fraction form
157,801.68/236,243.16 = 82,743.84/x - Step 3: Cross multiply
157,801.68x = 236,243.16 × 82,743.84 - Step 4: Simplify right side
157,801.68x = 19,547,666,232.13 - Step 5: Solve for x
x = 19,547,666,232.13/157,801.68 - Step 6: Final answer
x = 123,874.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.