Finding the Fourth Proportional to 133,143.11, 183,738.74 and 75,779.62
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Solution
The fourth proportional to 133,143.11, 183,738.74 and 75,779.62 is: 104,576.59
Step by Step Solution
- Step 1: Write the proportion equation
133,143.11 : 183,738.74 = 75,779.62 : x - Step 2: Convert to fraction form
133,143.11/183,738.74 = 75,779.62/x - Step 3: Cross multiply
133,143.11x = 183,738.74 × 75,779.62 - Step 4: Simplify right side
133,143.11x = 13,923,651,896.48 - Step 5: Solve for x
x = 13,923,651,896.48/133,143.11 - Step 6: Final answer
x = 104,576.59
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1.5x scale
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.