Finding the Fourth Proportional to 132,119.68, 182,313.12 and 78,395.44
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Solution
The fourth proportional to 132,119.68, 182,313.12 and 78,395.44 is: 108,178.56
Step by Step Solution
- Step 1: Write the proportion equation
132,119.68 : 182,313.12 = 78,395.44 : x - Step 2: Convert to fraction form
132,119.68/182,313.12 = 78,395.44/x - Step 3: Cross multiply
132,119.68x = 182,313.12 × 78,395.44 - Step 4: Simplify right side
132,119.68x = 14,292,517,260.17 - Step 5: Solve for x
x = 14,292,517,260.17/132,119.68 - Step 6: Final answer
x = 108,178.56
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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.