Finding the Fourth Proportional to 172,668.12, 259,037.34 and 72,828.68
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Solution
The fourth proportional to 172,668.12, 259,037.34 and 72,828.68 is: 109,257.85
Step by Step Solution
- Step 1: Write the proportion equation
172,668.12 : 259,037.34 = 72,828.68 : x - Step 2: Convert to fraction form
172,668.12/259,037.34 = 72,828.68/x - Step 3: Cross multiply
172,668.12x = 259,037.34 × 72,828.68 - Step 4: Simplify right side
172,668.12x = 18,865,347,178.77 - Step 5: Solve for x
x = 18,865,347,178.77/172,668.12 - Step 6: Final answer
x = 109,257.85
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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.