Finding the Fourth Proportional to 98,739.10, 148,105.32 and 39,558.88
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Solution
The fourth proportional to 98,739.10, 148,105.32 and 39,558.88 is: 59,336.99
Step by Step Solution
- Step 1: Write the proportion equation
98,739.10 : 148,105.32 = 39,558.88 : x - Step 2: Convert to fraction form
98,739.10/148,105.32 = 39,558.88/x - Step 3: Cross multiply
98,739.10x = 148,105.32 × 39,558.88 - Step 4: Simplify right side
98,739.10x = 5,858,880,581.24 - Step 5: Solve for x
x = 5,858,880,581.24/98,739.10 - Step 6: Final answer
x = 59,336.99
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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.