Finding the Fourth Proportional to 98,861.45, 136,444.91 and 73,535.99
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Solution
The fourth proportional to 98,861.45, 136,444.91 and 73,535.99 is: 101,491.64
Step by Step Solution
- Step 1: Write the proportion equation
98,861.45 : 136,444.91 = 73,535.99 : x - Step 2: Convert to fraction form
98,861.45/136,444.91 = 73,535.99/x - Step 3: Cross multiply
98,861.45x = 136,444.91 × 73,535.99 - Step 4: Simplify right side
98,861.45x = 10,033,610,487.41 - Step 5: Solve for x
x = 10,033,610,487.41/98,861.45 - Step 6: Final answer
x = 101,491.64
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1.5x scale
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.