Finding the Fourth Proportional to 107,904.70, 161,818.65 and 48,768.70
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Solution
The fourth proportional to 107,904.70, 161,818.65 and 48,768.70 is: 73,135.69
Step by Step Solution
- Step 1: Write the proportion equation
107,904.70 : 161,818.65 = 48,768.70 : x - Step 2: Convert to fraction form
107,904.70/161,818.65 = 48,768.70/x - Step 3: Cross multiply
107,904.70x = 161,818.65 × 48,768.70 - Step 4: Simplify right side
107,904.70x = 7,891,685,196.26 - Step 5: Solve for x
x = 7,891,685,196.26/107,904.70 - Step 6: Final answer
x = 73,135.69
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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.