Finding the Fourth Proportional to 115,998.70, 160,070.62 and 68,242.82
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Solution
The fourth proportional to 115,998.70, 160,070.62 and 68,242.82 is: 94,170.63
Step by Step Solution
- Step 1: Write the proportion equation
115,998.70 : 160,070.62 = 68,242.82 : x - Step 2: Convert to fraction form
115,998.70/160,070.62 = 68,242.82/x - Step 3: Cross multiply
115,998.70x = 160,070.62 × 68,242.82 - Step 4: Simplify right side
115,998.70x = 10,923,670,507.95 - Step 5: Solve for x
x = 10,923,670,507.95/115,998.70 - Step 6: Final answer
x = 94,170.63
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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.