Finding the Fourth Proportional to 125,025.36, 172,536.06 and 71,313.09
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Solution
The fourth proportional to 125,025.36, 172,536.06 and 71,313.09 is: 98,412.67
Step by Step Solution
- Step 1: Write the proportion equation
125,025.36 : 172,536.06 = 71,313.09 : x - Step 2: Convert to fraction form
125,025.36/172,536.06 = 71,313.09/x - Step 3: Cross multiply
125,025.36x = 172,536.06 × 71,313.09 - Step 4: Simplify right side
125,025.36x = 12,304,079,575.03 - Step 5: Solve for x
x = 12,304,079,575.03/125,025.36 - Step 6: Final answer
x = 98,412.67
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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.