Finding the Fourth Proportional to 80,195.13, 110,415.96 and 70,628.40
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Solution
The fourth proportional to 80,195.13, 110,415.96 and 70,628.40 is: 97,244.09
Step by Step Solution
- Step 1: Write the proportion equation
80,195.13 : 110,415.96 = 70,628.40 : x - Step 2: Convert to fraction form
80,195.13/110,415.96 = 70,628.40/x - Step 3: Cross multiply
80,195.13x = 110,415.96 × 70,628.40 - Step 4: Simplify right side
80,195.13x = 7,798,502,589.26 - Step 5: Solve for x
x = 7,798,502,589.26/80,195.13 - Step 6: Final answer
x = 97,244.09
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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.