Finding the Fourth Proportional to 134,409.43, 201,643.31 and 40,912.75
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Solution
The fourth proportional to 134,409.43, 201,643.31 and 40,912.75 is: 61,378.00
Step by Step Solution
- Step 1: Write the proportion equation
134,409.43 : 201,643.31 = 40,912.75 : x - Step 2: Convert to fraction form
134,409.43/201,643.31 = 40,912.75/x - Step 3: Cross multiply
134,409.43x = 201,643.31 × 40,912.75 - Step 4: Simplify right side
134,409.43x = 8,249,782,331.20 - Step 5: Solve for x
x = 8,249,782,331.20/134,409.43 - Step 6: Final answer
x = 61,378.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.