Finding the Fourth Proportional to 115,998.71, 160,070.63 and 68,242.82
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Solution
The fourth proportional to 115,998.71, 160,070.63 and 68,242.82 is: 94,170.62
Step by Step Solution
- Step 1: Write the proportion equation
115,998.71 : 160,070.63 = 68,242.82 : x - Step 2: Convert to fraction form
115,998.71/160,070.63 = 68,242.82/x - Step 3: Cross multiply
115,998.71x = 160,070.63 × 68,242.82 - Step 4: Simplify right side
115,998.71x = 10,923,670,048.81 - Step 5: Solve for x
x = 10,923,670,048.81/115,998.71 - Step 6: Final answer
x = 94,170.62
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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.