Finding the Fourth Proportional to 126,213.64, 174,178.44 and 69,628.66
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Solution
The fourth proportional to 126,213.64, 174,178.44 and 69,628.66 is: 96,089.55
Step by Step Solution
- Step 1: Write the proportion equation
126,213.64 : 174,178.44 = 69,628.66 : x - Step 2: Convert to fraction form
126,213.64/174,178.44 = 69,628.66/x - Step 3: Cross multiply
126,213.64x = 174,178.44 × 69,628.66 - Step 4: Simplify right side
126,213.64x = 12,127,811,378.09 - Step 5: Solve for x
x = 12,127,811,378.09/126,213.64 - Step 6: Final answer
x = 96,089.55
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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.