Finding the Fourth Proportional to 133,821.52, 184,682.64 and 77,231.68
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Solution
The fourth proportional to 133,821.52, 184,682.64 and 77,231.68 is: 106,584.88
Step by Step Solution
- Step 1: Write the proportion equation
133,821.52 : 184,682.64 = 77,231.68 : x - Step 2: Convert to fraction form
133,821.52/184,682.64 = 77,231.68/x - Step 3: Cross multiply
133,821.52x = 184,682.64 × 77,231.68 - Step 4: Simplify right side
133,821.52x = 14,263,350,554.04 - Step 5: Solve for x
x = 14,263,350,554.04/133,821.52 - Step 6: Final answer
x = 106,584.88
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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.