Finding the Fourth Proportional to 130,805.10, 180,514.49 and 73,449.00
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Solution
The fourth proportional to 130,805.10, 180,514.49 and 73,449.00 is: 101,361.55
Step by Step Solution
- Step 1: Write the proportion equation
130,805.10 : 180,514.49 = 73,449.00 : x - Step 2: Convert to fraction form
130,805.10/180,514.49 = 73,449.00/x - Step 3: Cross multiply
130,805.10x = 180,514.49 × 73,449.00 - Step 4: Simplify right side
130,805.10x = 13,258,607,506.19 - Step 5: Solve for x
x = 13,258,607,506.19/130,805.10 - Step 6: Final answer
x = 101,361.55
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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.