Finding the Fourth Proportional to 119,361.07, 164,718.21 and 65,649.70
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Solution
The fourth proportional to 119,361.07, 164,718.21 and 65,649.70 is: 90,596.55
Step by Step Solution
- Step 1: Write the proportion equation
119,361.07 : 164,718.21 = 65,649.70 : x - Step 2: Convert to fraction form
119,361.07/164,718.21 = 65,649.70/x - Step 3: Cross multiply
119,361.07x = 164,718.21 × 65,649.70 - Step 4: Simplify right side
119,361.07x = 10,813,700,659.24 - Step 5: Solve for x
x = 10,813,700,659.24/119,361.07 - Step 6: Final answer
x = 90,596.55
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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.