Finding the Fourth Proportional to 131,584.12, 181,575.12 and 74,220.28
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Solution
The fourth proportional to 131,584.12, 181,575.12 and 74,220.28 is: 102,417.80
Step by Step Solution
- Step 1: Write the proportion equation
131,584.12 : 181,575.12 = 74,220.28 : x - Step 2: Convert to fraction form
131,584.12/181,575.12 = 74,220.28/x - Step 3: Cross multiply
131,584.12x = 181,575.12 × 74,220.28 - Step 4: Simplify right side
131,584.12x = 13,476,556,247.43 - Step 5: Solve for x
x = 13,476,556,247.43/131,584.12 - Step 6: Final answer
x = 102,417.80
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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.