Finding the Fourth Proportional to 133,729.68, 184,565.88 and 82,758.82
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Solution
The fourth proportional to 133,729.68, 184,565.88 and 82,758.82 is: 114,218.88
Step by Step Solution
- Step 1: Write the proportion equation
133,729.68 : 184,565.88 = 82,758.82 : x - Step 2: Convert to fraction form
133,729.68/184,565.88 = 82,758.82/x - Step 3: Cross multiply
133,729.68x = 184,565.88 × 82,758.82 - Step 4: Simplify right side
133,729.68x = 15,274,454,369.24 - Step 5: Solve for x
x = 15,274,454,369.24/133,729.68 - Step 6: Final answer
x = 114,218.88
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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.