Finding the Fourth Proportional to 126,718.10, 174,853.68 and 75,720.05
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Solution
The fourth proportional to 126,718.10, 174,853.68 and 75,720.05 is: 104,483.33
Step by Step Solution
- Step 1: Write the proportion equation
126,718.10 : 174,853.68 = 75,720.05 : x - Step 2: Convert to fraction form
126,718.10/174,853.68 = 75,720.05/x - Step 3: Cross multiply
126,718.10x = 174,853.68 × 75,720.05 - Step 4: Simplify right side
126,718.10x = 13,239,929,392.28 - Step 5: Solve for x
x = 13,239,929,392.28/126,718.10 - Step 6: Final answer
x = 104,483.33
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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.