Finding the Fourth Proportional to 136,954.32, 188,997.21 and 76,525.08
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Solution
The fourth proportional to 136,954.32, 188,997.21 and 76,525.08 is: 105,604.75
Step by Step Solution
- Step 1: Write the proportion equation
136,954.32 : 188,997.21 = 76,525.08 : x - Step 2: Convert to fraction form
136,954.32/188,997.21 = 76,525.08/x - Step 3: Cross multiply
136,954.32x = 188,997.21 × 76,525.08 - Step 4: Simplify right side
136,954.32x = 14,463,026,615.03 - Step 5: Solve for x
x = 14,463,026,615.03/136,954.32 - Step 6: Final answer
x = 105,604.75
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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.