Finding the Fourth Proportional to 130,201.22, 179,618.10 and 76,485.26
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Solution
The fourth proportional to 130,201.22, 179,618.10 and 76,485.26 is: 105,514.66
Step by Step Solution
- Step 1: Write the proportion equation
130,201.22 : 179,618.10 = 76,485.26 : x - Step 2: Convert to fraction form
130,201.22/179,618.10 = 76,485.26/x - Step 3: Cross multiply
130,201.22x = 179,618.10 × 76,485.26 - Step 4: Simplify right side
130,201.22x = 13,738,137,079.21 - Step 5: Solve for x
x = 13,738,137,079.21/130,201.22 - Step 6: Final answer
x = 105,514.66
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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.