Finding the Fourth Proportional to 187,239.26, 258,370.65 and 106,649.90
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Solution
The fourth proportional to 187,239.26, 258,370.65 and 106,649.90 is: 147,165.74
Step by Step Solution
- Step 1: Write the proportion equation
187,239.26 : 258,370.65 = 106,649.90 : x - Step 2: Convert to fraction form
187,239.26/258,370.65 = 106,649.90/x - Step 3: Cross multiply
187,239.26x = 258,370.65 × 106,649.90 - Step 4: Simplify right side
187,239.26x = 27,555,203,985.44 - Step 5: Solve for x
x = 27,555,203,985.44/187,239.26 - Step 6: Final answer
x = 147,165.74
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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.