Finding the Fourth Proportional to 115,705.84, 159,626.94 and 75,404.92
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Solution
The fourth proportional to 115,705.84, 159,626.94 and 75,404.92 is: 104,028.08
Step by Step Solution
- Step 1: Write the proportion equation
115,705.84 : 159,626.94 = 75,404.92 : x - Step 2: Convert to fraction form
115,705.84/159,626.94 = 75,404.92/x - Step 3: Cross multiply
115,705.84x = 159,626.94 × 75,404.92 - Step 4: Simplify right side
115,705.84x = 12,036,656,640.54 - Step 5: Solve for x
x = 12,036,656,640.54/115,705.84 - Step 6: Final answer
x = 104,028.08
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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.