Finding the Fourth Proportional to 120,035.24, 165,596.60 and 72,260.92
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Solution
The fourth proportional to 120,035.24, 165,596.60 and 72,260.92 is: 99,688.75
Step by Step Solution
- Step 1: Write the proportion equation
120,035.24 : 165,596.60 = 72,260.92 : x - Step 2: Convert to fraction form
120,035.24/165,596.60 = 72,260.92/x - Step 3: Cross multiply
120,035.24x = 165,596.60 × 72,260.92 - Step 4: Simplify right side
120,035.24x = 11,966,162,664.87 - Step 5: Solve for x
x = 11,966,162,664.87/120,035.24 - Step 6: Final answer
x = 99,688.75
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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.