Finding the Fourth Proportional to 115,842.40, 174,134.80 and 107,624.80
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Solution
The fourth proportional to 115,842.40, 174,134.80 and 107,624.80 is: 161,782.07
Step by Step Solution
- Step 1: Write the proportion equation
115,842.40 : 174,134.80 = 107,624.80 : x - Step 2: Convert to fraction form
115,842.40/174,134.80 = 107,624.80/x - Step 3: Cross multiply
115,842.40x = 174,134.80 × 107,624.80 - Step 4: Simplify right side
115,842.40x = 18,741,223,023.04 - Step 5: Solve for x
x = 18,741,223,023.04/115,842.40 - Step 6: Final answer
x = 161,782.07
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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.