Finding the Fourth Proportional to 130,825.26, 180,540.09 and 74,232.18
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Solution
The fourth proportional to 130,825.26, 180,540.09 and 74,232.18 is: 102,441.11
Step by Step Solution
- Step 1: Write the proportion equation
130,825.26 : 180,540.09 = 74,232.18 : x - Step 2: Convert to fraction form
130,825.26/180,540.09 = 74,232.18/x - Step 3: Cross multiply
130,825.26x = 180,540.09 × 74,232.18 - Step 4: Simplify right side
130,825.26x = 13,401,884,458.10 - Step 5: Solve for x
x = 13,401,884,458.10/130,825.26 - Step 6: Final answer
x = 102,441.11
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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.