Finding the Fourth Proportional to 187,649.42, 258,951.14 and 107,075.48
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Solution
The fourth proportional to 187,649.42, 258,951.14 and 107,075.48 is: 147,761.28
Step by Step Solution
- Step 1: Write the proportion equation
187,649.42 : 258,951.14 = 107,075.48 : x - Step 2: Convert to fraction form
187,649.42/258,951.14 = 107,075.48/x - Step 3: Cross multiply
187,649.42x = 258,951.14 × 107,075.48 - Step 4: Simplify right side
187,649.42x = 27,727,317,612.05 - Step 5: Solve for x
x = 27,727,317,612.05/187,649.42 - Step 6: Final answer
x = 147,761.28
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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.