Finding the Fourth Proportional to 126,695.34, 174,908.97 and 86,469.12
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Solution
The fourth proportional to 126,695.34, 174,908.97 and 86,469.12 is: 119,374.75
Step by Step Solution
- Step 1: Write the proportion equation
126,695.34 : 174,908.97 = 86,469.12 : x - Step 2: Convert to fraction form
126,695.34/174,908.97 = 86,469.12/x - Step 3: Cross multiply
126,695.34x = 174,908.97 × 86,469.12 - Step 4: Simplify right side
126,695.34x = 15,124,224,716.01 - Step 5: Solve for x
x = 15,124,224,716.01/126,695.34 - Step 6: Final answer
x = 119,374.75
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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.