Finding the Fourth Proportional to 133,236.79, 183,866.77 and 71,982.97
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Solution
The fourth proportional to 133,236.79, 183,866.77 and 71,982.97 is: 99,336.50
Step by Step Solution
- Step 1: Write the proportion equation
133,236.79 : 183,866.77 = 71,982.97 : x - Step 2: Convert to fraction form
133,236.79/183,866.77 = 71,982.97/x - Step 3: Cross multiply
133,236.79x = 183,866.77 × 71,982.97 - Step 4: Simplify right side
133,236.79x = 13,235,276,188.91 - Step 5: Solve for x
x = 13,235,276,188.91/133,236.79 - Step 6: Final answer
x = 99,336.50
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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.