Finding the Fourth Proportional to 98,157.62, 135,295.77 and 69,440.18
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Solution
The fourth proportional to 98,157.62, 135,295.77 and 69,440.18 is: 95,713.02
Step by Step Solution
- Step 1: Write the proportion equation
98,157.62 : 135,295.77 = 69,440.18 : x - Step 2: Convert to fraction form
98,157.62/135,295.77 = 69,440.18/x - Step 3: Cross multiply
98,157.62x = 135,295.77 × 69,440.18 - Step 4: Simplify right side
98,157.62x = 9,394,962,622.04 - Step 5: Solve for x
x = 9,394,962,622.04/98,157.62 - Step 6: Final answer
x = 95,713.02
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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.