Finding the Fourth Proportional to 120,269.63, 180,400.71 and 57,135.18
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Solution
The fourth proportional to 120,269.63, 180,400.71 and 57,135.18 is: 85,701.00
Step by Step Solution
- Step 1: Write the proportion equation
120,269.63 : 180,400.71 = 57,135.18 : x - Step 2: Convert to fraction form
120,269.63/180,400.71 = 57,135.18/x - Step 3: Cross multiply
120,269.63x = 180,400.71 × 57,135.18 - Step 4: Simplify right side
120,269.63x = 10,307,227,037.98 - Step 5: Solve for x
x = 10,307,227,037.98/120,269.63 - Step 6: Final answer
x = 85,701.00
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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.