Finding the Fourth Proportional to 115,968.05, 160,033.20 and 68,224.47
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Solution
The fourth proportional to 115,968.05, 160,033.20 and 68,224.47 is: 94,148.17
Step by Step Solution
- Step 1: Write the proportion equation
115,968.05 : 160,033.20 = 68,224.47 : x - Step 2: Convert to fraction form
115,968.05/160,033.20 = 68,224.47/x - Step 3: Cross multiply
115,968.05x = 160,033.20 × 68,224.47 - Step 4: Simplify right side
115,968.05x = 10,918,180,252.40 - Step 5: Solve for x
x = 10,918,180,252.40/115,968.05 - Step 6: Final answer
x = 94,148.17
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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.