Finding the Fourth Proportional to 156,299.42, 234,135.12 and 71,941.70
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Solution
The fourth proportional to 156,299.42, 234,135.12 and 71,941.70 is: 107,768.02
Step by Step Solution
- Step 1: Write the proportion equation
156,299.42 : 234,135.12 = 71,941.70 : x - Step 2: Convert to fraction form
156,299.42/234,135.12 = 71,941.70/x - Step 3: Cross multiply
156,299.42x = 234,135.12 × 71,941.70 - Step 4: Simplify right side
156,299.42x = 16,844,078,562.50 - Step 5: Solve for x
x = 16,844,078,562.50/156,299.42 - Step 6: Final answer
x = 107,768.02
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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.