Finding the Fourth Proportional to 98,922.96, 136,575.99 and 68,698.62
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Solution
The fourth proportional to 98,922.96, 136,575.99 and 68,698.62 is: 94,847.36
Step by Step Solution
- Step 1: Write the proportion equation
98,922.96 : 136,575.99 = 68,698.62 : x - Step 2: Convert to fraction form
98,922.96/136,575.99 = 68,698.62/x - Step 3: Cross multiply
98,922.96x = 136,575.99 × 68,698.62 - Step 4: Simplify right side
98,922.96x = 9,382,582,038.13 - Step 5: Solve for x
x = 9,382,582,038.13/98,922.96 - Step 6: Final answer
x = 94,847.36
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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.