Finding the Fourth Proportional to 107,628.80, 161,385.60 and 45,228.80
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Solution
The fourth proportional to 107,628.80, 161,385.60 and 45,228.80 is: 67,818.99
Step by Step Solution
- Step 1: Write the proportion equation
107,628.80 : 161,385.60 = 45,228.80 : x - Step 2: Convert to fraction form
107,628.80/161,385.60 = 45,228.80/x - Step 3: Cross multiply
107,628.80x = 161,385.60 × 45,228.80 - Step 4: Simplify right side
107,628.80x = 7,299,277,025.28 - Step 5: Solve for x
x = 7,299,277,025.28/107,628.80 - Step 6: Final answer
x = 67,818.99
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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.