Finding the Fourth Proportional to 126,911.49, 175,130.55 and 69,539.60
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Solution
The fourth proportional to 126,911.49, 175,130.55 and 69,539.60 is: 95,960.64
Step by Step Solution
- Step 1: Write the proportion equation
126,911.49 : 175,130.55 = 69,539.60 : x - Step 2: Convert to fraction form
126,911.49/175,130.55 = 69,539.60/x - Step 3: Cross multiply
126,911.49x = 175,130.55 × 69,539.60 - Step 4: Simplify right side
126,911.49x = 12,178,507,519.13 - Step 5: Solve for x
x = 12,178,507,519.13/126,911.49 - Step 6: Final answer
x = 95,960.64
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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.