Finding the Fourth Proportional to 99,923.36, 149,810.92 and 60,471.09
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Solution
The fourth proportional to 99,923.36, 149,810.92 and 60,471.09 is: 90,661.78
Step by Step Solution
- Step 1: Write the proportion equation
99,923.36 : 149,810.92 = 60,471.09 : x - Step 2: Convert to fraction form
99,923.36/149,810.92 = 60,471.09/x - Step 3: Cross multiply
99,923.36x = 149,810.92 × 60,471.09 - Step 4: Simplify right side
99,923.36x = 9,059,229,475.13 - Step 5: Solve for x
x = 9,059,229,475.13/99,923.36 - Step 6: Final answer
x = 90,661.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.