Finding the Fourth Proportional to 115,153.12, 158,896.97 and 66,754.81
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Solution
The fourth proportional to 115,153.12, 158,896.97 and 66,754.81 is: 92,113.32
Step by Step Solution
- Step 1: Write the proportion equation
115,153.12 : 158,896.97 = 66,754.81 : x - Step 2: Convert to fraction form
115,153.12/158,896.97 = 66,754.81/x - Step 3: Cross multiply
115,153.12x = 158,896.97 × 66,754.81 - Step 4: Simplify right side
115,153.12x = 10,607,136,247.44 - Step 5: Solve for x
x = 10,607,136,247.44/115,153.12 - Step 6: Final answer
x = 92,113.32
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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.