Finding the Fourth Proportional to 187,512.47, 258,767.21 and 102,629.53
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Solution
The fourth proportional to 187,512.47, 258,767.21 and 102,629.53 is: 141,628.75
Step by Step Solution
- Step 1: Write the proportion equation
187,512.47 : 258,767.21 = 102,629.53 : x - Step 2: Convert to fraction form
187,512.47/258,767.21 = 102,629.53/x - Step 3: Cross multiply
187,512.47x = 258,767.21 × 102,629.53 - Step 4: Simplify right side
187,512.47x = 26,557,157,144.45 - Step 5: Solve for x
x = 26,557,157,144.45/187,512.47 - Step 6: Final answer
x = 141,628.75
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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.