Finding the Fourth Proportional to 134,628.36, 185,754.36 and 91,749.12
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Solution
The fourth proportional to 134,628.36, 185,754.36 and 91,749.12 is: 126,591.45
Step by Step Solution
- Step 1: Write the proportion equation
134,628.36 : 185,754.36 = 91,749.12 : x - Step 2: Convert to fraction form
134,628.36/185,754.36 = 91,749.12/x - Step 3: Cross multiply
134,628.36x = 185,754.36 × 91,749.12 - Step 4: Simplify right side
134,628.36x = 17,042,799,066.16 - Step 5: Solve for x
x = 17,042,799,066.16/134,628.36 - Step 6: Final answer
x = 126,591.45
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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.