Finding the Fourth Proportional to 134,427.60, 201,787.20 and 75,378.60
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Solution
The fourth proportional to 134,427.60, 201,787.20 and 75,378.60 is: 113,149.66
Step by Step Solution
- Step 1: Write the proportion equation
134,427.60 : 201,787.20 = 75,378.60 : x - Step 2: Convert to fraction form
134,427.60/201,787.20 = 75,378.60/x - Step 3: Cross multiply
134,427.60x = 201,787.20 × 75,378.60 - Step 4: Simplify right side
134,427.60x = 15,210,436,633.92 - Step 5: Solve for x
x = 15,210,436,633.92/134,427.60 - Step 6: Final answer
x = 113,149.66
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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.