Finding the Fourth Proportional to 132,819.24, 183,285.84 and 72,388.68
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Solution
The fourth proportional to 132,819.24, 183,285.84 and 72,388.68 is: 99,893.81
Step by Step Solution
- Step 1: Write the proportion equation
132,819.24 : 183,285.84 = 72,388.68 : x - Step 2: Convert to fraction form
132,819.24/183,285.84 = 72,388.68/x - Step 3: Cross multiply
132,819.24x = 183,285.84 × 72,388.68 - Step 4: Simplify right side
132,819.24x = 13,267,820,020.29 - Step 5: Solve for x
x = 13,267,820,020.29/132,819.24 - Step 6: Final answer
x = 99,893.81
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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.