Finding the Fourth Proportional to 145,739.76, 218,716.20 and 93,277.68
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Solution
The fourth proportional to 145,739.76, 218,716.20 and 93,277.68 is: 139,984.72
Step by Step Solution
- Step 1: Write the proportion equation
145,739.76 : 218,716.20 = 93,277.68 : x - Step 2: Convert to fraction form
145,739.76/218,716.20 = 93,277.68/x - Step 3: Cross multiply
145,739.76x = 218,716.20 × 93,277.68 - Step 4: Simplify right side
145,739.76x = 20,401,339,714.42 - Step 5: Solve for x
x = 20,401,339,714.42/145,739.76 - Step 6: Final answer
x = 139,984.72
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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.