Finding the Fourth Proportional to 126,754.74, 174,762.63 and 81,352.62
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Solution
The fourth proportional to 126,754.74, 174,762.63 and 81,352.62 is: 112,164.62
Step by Step Solution
- Step 1: Write the proportion equation
126,754.74 : 174,762.63 = 81,352.62 : x - Step 2: Convert to fraction form
126,754.74/174,762.63 = 81,352.62/x - Step 3: Cross multiply
126,754.74x = 174,762.63 × 81,352.62 - Step 4: Simplify right side
126,754.74x = 14,217,397,828.59 - Step 5: Solve for x
x = 14,217,397,828.59/126,754.74 - Step 6: Final answer
x = 112,164.62
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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.