Finding the Fourth Proportional to 134,676.21, 185,854.46 and 74,249.07
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Solution
The fourth proportional to 134,676.21, 185,854.46 and 74,249.07 is: 102,464.43
Step by Step Solution
- Step 1: Write the proportion equation
134,676.21 : 185,854.46 = 74,249.07 : x - Step 2: Convert to fraction form
134,676.21/185,854.46 = 74,249.07/x - Step 3: Cross multiply
134,676.21x = 185,854.46 × 74,249.07 - Step 4: Simplify right side
134,676.21x = 13,799,520,995.97 - Step 5: Solve for x
x = 13,799,520,995.97/134,676.21 - Step 6: Final answer
x = 102,464.43
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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.