Finding the Fourth Proportional to 174,108.30, 261,211.05 and 85,364.70
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Solution
The fourth proportional to 174,108.30, 261,211.05 and 85,364.70 is: 128,070.88
Step by Step Solution
- Step 1: Write the proportion equation
174,108.30 : 261,211.05 = 85,364.70 : x - Step 2: Convert to fraction form
174,108.30/261,211.05 = 85,364.70/x - Step 3: Cross multiply
174,108.30x = 261,211.05 × 85,364.70 - Step 4: Simplify right side
174,108.30x = 22,298,202,919.94 - Step 5: Solve for x
x = 22,298,202,919.94/174,108.30 - Step 6: Final answer
x = 128,070.88
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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.