Finding the Fourth Proportional to 115,133.44, 172,739.37 and 70,244.68
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Solution
The fourth proportional to 115,133.44, 172,739.37 and 70,244.68 is: 105,390.94
Step by Step Solution
- Step 1: Write the proportion equation
115,133.44 : 172,739.37 = 70,244.68 : x - Step 2: Convert to fraction form
115,133.44/172,739.37 = 70,244.68/x - Step 3: Cross multiply
115,133.44x = 172,739.37 × 70,244.68 - Step 4: Simplify right side
115,133.44x = 12,134,021,769.05 - Step 5: Solve for x
x = 12,134,021,769.05/115,133.44 - Step 6: Final answer
x = 105,390.94
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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.