Finding the Fourth Proportional to 172,989.42, 259,519.14 and 73,149.46
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Solution
The fourth proportional to 172,989.42, 259,519.14 and 73,149.46 is: 109,738.99
Step by Step Solution
- Step 1: Write the proportion equation
172,989.42 : 259,519.14 = 73,149.46 : x - Step 2: Convert to fraction form
172,989.42/259,519.14 = 73,149.46/x - Step 3: Cross multiply
172,989.42x = 259,519.14 × 73,149.46 - Step 4: Simplify right side
172,989.42x = 18,983,684,950.66 - Step 5: Solve for x
x = 18,983,684,950.66/172,989.42 - Step 6: Final answer
x = 109,738.99
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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.