Finding the Fourth Proportional to 156,928.28, 235,259.70 and 68,115.02
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Solution
The fourth proportional to 156,928.28, 235,259.70 and 68,115.02 is: 102,114.92
Step by Step Solution
- Step 1: Write the proportion equation
156,928.28 : 235,259.70 = 68,115.02 : x - Step 2: Convert to fraction form
156,928.28/235,259.70 = 68,115.02/x - Step 3: Cross multiply
156,928.28x = 235,259.70 × 68,115.02 - Step 4: Simplify right side
156,928.28x = 16,024,719,170.69 - Step 5: Solve for x
x = 16,024,719,170.69/156,928.28 - Step 6: Final answer
x = 102,114.92
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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.