Finding the Fourth Proportional to 156,734.90, 235,102.35 and 133,115.30
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Solution
The fourth proportional to 156,734.90, 235,102.35 and 133,115.30 is: 199,672.95
Step by Step Solution
- Step 1: Write the proportion equation
156,734.90 : 235,102.35 = 133,115.30 : x - Step 2: Convert to fraction form
156,734.90/235,102.35 = 133,115.30/x - Step 3: Cross multiply
156,734.90x = 235,102.35 × 133,115.30 - Step 4: Simplify right side
156,734.90x = 31,295,719,850.96 - Step 5: Solve for x
x = 31,295,719,850.96/156,734.90 - Step 6: Final answer
x = 199,672.95
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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.