Finding the Fourth Proportional to 107,664.70, 161,205.45 and 84,336.70
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Solution
The fourth proportional to 107,664.70, 161,205.45 and 84,336.70 is: 126,276.63
Step by Step Solution
- Step 1: Write the proportion equation
107,664.70 : 161,205.45 = 84,336.70 : x - Step 2: Convert to fraction form
107,664.70/161,205.45 = 84,336.70/x - Step 3: Cross multiply
107,664.70x = 161,205.45 × 84,336.70 - Step 4: Simplify right side
107,664.70x = 13,595,535,675.02 - Step 5: Solve for x
x = 13,595,535,675.02/107,664.70 - Step 6: Final answer
x = 126,276.63
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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.