Finding the Fourth Proportional to 127,701.20, 191,292.60 and 72,232.40
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Solution
The fourth proportional to 127,701.20, 191,292.60 and 72,232.40 is: 108,201.99
Step by Step Solution
- Step 1: Write the proportion equation
127,701.20 : 191,292.60 = 72,232.40 : x - Step 2: Convert to fraction form
127,701.20/191,292.60 = 72,232.40/x - Step 3: Cross multiply
127,701.20x = 191,292.60 × 72,232.40 - Step 4: Simplify right side
127,701.20x = 13,817,523,600.24 - Step 5: Solve for x
x = 13,817,523,600.24/127,701.20 - Step 6: Final answer
x = 108,201.99
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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.