Finding the Fourth Proportional to 105,003.10, 143,744.99 and 104,252.68
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Solution
The fourth proportional to 105,003.10, 143,744.99 and 104,252.68 is: 142,717.70
Step by Step Solution
- Step 1: Write the proportion equation
105,003.10 : 143,744.99 = 104,252.68 : x - Step 2: Convert to fraction form
105,003.10/143,744.99 = 104,252.68/x - Step 3: Cross multiply
105,003.10x = 143,744.99 × 104,252.68 - Step 4: Simplify right side
105,003.10x = 14,985,800,444.07 - Step 5: Solve for x
x = 14,985,800,444.07/105,003.10 - Step 6: Final answer
x = 142,717.70
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.