Finding the Fourth Proportional to 133,135.96, 183,751.36 and 78,685.92
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Solution
The fourth proportional to 133,135.96, 183,751.36 and 78,685.92 is: 108,600.60
Step by Step Solution
- Step 1: Write the proportion equation
133,135.96 : 183,751.36 = 78,685.92 : x - Step 2: Convert to fraction form
133,135.96/183,751.36 = 78,685.92/x - Step 3: Cross multiply
133,135.96x = 183,751.36 × 78,685.92 - Step 4: Simplify right side
133,135.96x = 14,458,644,812.85 - Step 5: Solve for x
x = 14,458,644,812.85/133,135.96 - Step 6: Final answer
x = 108,600.60
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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.