Finding the Fourth Proportional to 156,949.60, 235,438.80 and 51,768.80
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Solution
The fourth proportional to 156,949.60, 235,438.80 and 51,768.80 is: 77,657.95
Step by Step Solution
- Step 1: Write the proportion equation
156,949.60 : 235,438.80 = 51,768.80 : x - Step 2: Convert to fraction form
156,949.60/235,438.80 = 51,768.80/x - Step 3: Cross multiply
156,949.60x = 235,438.80 × 51,768.80 - Step 4: Simplify right side
156,949.60x = 12,188,384,149.44 - Step 5: Solve for x
x = 12,188,384,149.44/156,949.60 - Step 6: Final answer
x = 77,657.95
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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.