Finding the Fourth Proportional to 122,090.96, 168,494.45 and 73,704.79
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Solution
The fourth proportional to 122,090.96, 168,494.45 and 73,704.79 is: 101,717.99
Step by Step Solution
- Step 1: Write the proportion equation
122,090.96 : 168,494.45 = 73,704.79 : x - Step 2: Convert to fraction form
122,090.96/168,494.45 = 73,704.79/x - Step 3: Cross multiply
122,090.96x = 168,494.45 × 73,704.79 - Step 4: Simplify right side
122,090.96x = 12,418,846,947.73 - Step 5: Solve for x
x = 12,418,846,947.73/122,090.96 - Step 6: Final answer
x = 101,717.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.