Finding the Fourth Proportional to 140,876.58, 194,408.52 and 77,214.23
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Solution
The fourth proportional to 140,876.58, 194,408.52 and 77,214.23 is: 106,554.99
Step by Step Solution
- Step 1: Write the proportion equation
140,876.58 : 194,408.52 = 77,214.23 : x - Step 2: Convert to fraction form
140,876.58/194,408.52 = 77,214.23/x - Step 3: Cross multiply
140,876.58x = 194,408.52 × 77,214.23 - Step 4: Simplify right side
140,876.58x = 15,011,103,205.20 - Step 5: Solve for x
x = 15,011,103,205.20/140,876.58 - Step 6: Final answer
x = 106,554.99
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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.