Finding the Fourth Proportional to 156,840.96, 235,129.18 and 68,027.57
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Solution
The fourth proportional to 156,840.96, 235,129.18 and 68,027.57 is: 101,983.99
Step by Step Solution
- Step 1: Write the proportion equation
156,840.96 : 235,129.18 = 68,027.57 : x - Step 2: Convert to fraction form
156,840.96/235,129.18 = 68,027.57/x - Step 3: Cross multiply
156,840.96x = 235,129.18 × 68,027.57 - Step 4: Simplify right side
156,840.96x = 15,995,266,751.49 - Step 5: Solve for x
x = 15,995,266,751.49/156,840.96 - Step 6: Final answer
x = 101,983.99
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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.