Finding the Fourth Proportional to 98,117.78, 147,176.81 and 27,997.09
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Solution
The fourth proportional to 98,117.78, 147,176.81 and 27,997.09 is: 41,995.67
Step by Step Solution
- Step 1: Write the proportion equation
98,117.78 : 147,176.81 = 27,997.09 : x - Step 2: Convert to fraction form
98,117.78/147,176.81 = 27,997.09/x - Step 3: Cross multiply
98,117.78x = 147,176.81 × 27,997.09 - Step 4: Simplify right side
98,117.78x = 4,120,522,097.53 - Step 5: Solve for x
x = 4,120,522,097.53/98,117.78 - Step 6: Final answer
x = 41,995.67
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1.5x scale
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.