Finding the Fourth Proportional to 126,635.87, 174,681.36 and 83,615.76
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Solution
The fourth proportional to 126,635.87, 174,681.36 and 83,615.76 is: 115,339.47
Step by Step Solution
- Step 1: Write the proportion equation
126,635.87 : 174,681.36 = 83,615.76 : x - Step 2: Convert to fraction form
126,635.87/174,681.36 = 83,615.76/x - Step 3: Cross multiply
126,635.87x = 174,681.36 × 83,615.76 - Step 4: Simplify right side
126,635.87x = 14,606,114,674.23 - Step 5: Solve for x
x = 14,606,114,674.23/126,635.87 - Step 6: Final answer
x = 115,339.47
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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.