Finding the Fourth Proportional to 132,429.75, 182,753.09 and 72,813.75
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Solution
The fourth proportional to 132,429.75, 182,753.09 and 72,813.75 is: 100,482.99
Step by Step Solution
- Step 1: Write the proportion equation
132,429.75 : 182,753.09 = 72,813.75 : x - Step 2: Convert to fraction form
132,429.75/182,753.09 = 72,813.75/x - Step 3: Cross multiply
132,429.75x = 182,753.09 × 72,813.75 - Step 4: Simplify right side
132,429.75x = 13,306,937,806.99 - Step 5: Solve for x
x = 13,306,937,806.99/132,429.75 - Step 6: Final answer
x = 100,482.99
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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.