Finding the Fourth Proportional to 85,617.26, 118,184.94 and 76,649.19
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Solution
The fourth proportional to 85,617.26, 118,184.94 and 76,649.19 is: 105,805.54
Step by Step Solution
- Step 1: Write the proportion equation
85,617.26 : 118,184.94 = 76,649.19 : x - Step 2: Convert to fraction form
85,617.26/118,184.94 = 76,649.19/x - Step 3: Cross multiply
85,617.26x = 118,184.94 × 76,649.19 - Step 4: Simplify right side
85,617.26x = 9,058,780,798.55 - Step 5: Solve for x
x = 9,058,780,798.55/85,617.26 - Step 6: Final answer
x = 105,805.54
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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.