Finding the Fourth Proportional to 113,741.99, 156,939.60 and 65,349.84
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Solution
The fourth proportional to 113,741.99, 156,939.60 and 65,349.84 is: 90,168.80
Step by Step Solution
- Step 1: Write the proportion equation
113,741.99 : 156,939.60 = 65,349.84 : x - Step 2: Convert to fraction form
113,741.99/156,939.60 = 65,349.84/x - Step 3: Cross multiply
113,741.99x = 156,939.60 × 65,349.84 - Step 4: Simplify right side
113,741.99x = 10,255,977,749.66 - Step 5: Solve for x
x = 10,255,977,749.66/113,741.99 - Step 6: Final answer
x = 90,168.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.