Finding the Fourth Proportional to 100,997.24, 139,376.16 and 55,675.98
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Solution
The fourth proportional to 100,997.24, 139,376.16 and 55,675.98 is: 76,832.84
Step by Step Solution
- Step 1: Write the proportion equation
100,997.24 : 139,376.16 = 55,675.98 : x - Step 2: Convert to fraction form
100,997.24/139,376.16 = 55,675.98/x - Step 3: Cross multiply
100,997.24x = 139,376.16 × 55,675.98 - Step 4: Simplify right side
100,997.24x = 7,759,904,296.64 - Step 5: Solve for x
x = 7,759,904,296.64/100,997.24 - Step 6: Final answer
x = 76,832.84
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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.