Finding the Fourth Proportional to 126,107.68, 174,009.36 and 75,104.80
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Solution
The fourth proportional to 126,107.68, 174,009.36 and 75,104.80 is: 103,633.17
Step by Step Solution
- Step 1: Write the proportion equation
126,107.68 : 174,009.36 = 75,104.80 : x - Step 2: Convert to fraction form
126,107.68/174,009.36 = 75,104.80/x - Step 3: Cross multiply
126,107.68x = 174,009.36 × 75,104.80 - Step 4: Simplify right side
126,107.68x = 13,068,938,180.93 - Step 5: Solve for x
x = 13,068,938,180.93/126,107.68 - Step 6: Final answer
x = 103,633.17
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1.5x scale
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.