Finding the Fourth Proportional to 120,267.62, 180,397.71 and 57,133.19
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Solution
The fourth proportional to 120,267.62, 180,397.71 and 57,133.19 is: 85,698.02
Step by Step Solution
- Step 1: Write the proportion equation
120,267.62 : 180,397.71 = 57,133.19 : x - Step 2: Convert to fraction form
120,267.62/180,397.71 = 57,133.19/x - Step 3: Cross multiply
120,267.62x = 180,397.71 × 57,133.19 - Step 4: Simplify right side
120,267.62x = 10,306,696,640.99 - Step 5: Solve for x
x = 10,306,696,640.99/120,267.62 - Step 6: Final answer
x = 85,698.02
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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.