Finding the Fourth Proportional to 126,242.24, 174,219.56 and 69,657.28
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Solution
The fourth proportional to 126,242.24, 174,219.56 and 69,657.28 is: 96,129.95
Step by Step Solution
- Step 1: Write the proportion equation
126,242.24 : 174,219.56 = 69,657.28 : x - Step 2: Convert to fraction form
126,242.24/174,219.56 = 69,657.28/x - Step 3: Cross multiply
126,242.24x = 174,219.56 × 69,657.28 - Step 4: Simplify right side
126,242.24x = 12,135,660,672.40 - Step 5: Solve for x
x = 12,135,660,672.40/126,242.24 - Step 6: Final answer
x = 96,129.95
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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.