Finding the Fourth Proportional to 168,880.21, 233,031.67 and 100,882.75
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Solution
The fourth proportional to 168,880.21, 233,031.67 and 100,882.75 is: 139,204.44
Step by Step Solution
- Step 1: Write the proportion equation
168,880.21 : 233,031.67 = 100,882.75 : x - Step 2: Convert to fraction form
168,880.21/233,031.67 = 100,882.75/x - Step 3: Cross multiply
168,880.21x = 233,031.67 × 100,882.75 - Step 4: Simplify right side
168,880.21x = 23,508,875,706.69 - Step 5: Solve for x
x = 23,508,875,706.69/168,880.21 - Step 6: Final answer
x = 139,204.44
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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.