Finding the Fourth Proportional to 178,740.55, 267,702.54 and 85,311.91
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Solution
The fourth proportional to 178,740.55, 267,702.54 and 85,311.91 is: 127,772.99
Step by Step Solution
- Step 1: Write the proportion equation
178,740.55 : 267,702.54 = 85,311.91 : x - Step 2: Convert to fraction form
178,740.55/267,702.54 = 85,311.91/x - Step 3: Cross multiply
178,740.55x = 267,702.54 × 85,311.91 - Step 4: Simplify right side
178,740.55x = 22,838,214,999.25 - Step 5: Solve for x
x = 22,838,214,999.25/178,740.55 - Step 6: Final answer
x = 127,772.99
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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.