Finding the Fourth Proportional to 139,676.14, 209,347.68 and 97,326.88
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Solution
The fourth proportional to 139,676.14, 209,347.68 and 97,326.88 is: 145,874.28
Step by Step Solution
- Step 1: Write the proportion equation
139,676.14 : 209,347.68 = 97,326.88 : x - Step 2: Convert to fraction form
139,676.14/209,347.68 = 97,326.88/x - Step 3: Cross multiply
139,676.14x = 209,347.68 × 97,326.88 - Step 4: Simplify right side
139,676.14x = 20,375,156,529.64 - Step 5: Solve for x
x = 20,375,156,529.64/139,676.14 - Step 6: Final answer
x = 145,874.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.