Finding the Fourth Proportional to 98,207.20, 147,319.29 and 27,129.81
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Solution
The fourth proportional to 98,207.20, 147,319.29 and 27,129.81 is: 40,697.07
Step by Step Solution
- Step 1: Write the proportion equation
98,207.20 : 147,319.29 = 27,129.81 : x - Step 2: Convert to fraction form
98,207.20/147,319.29 = 27,129.81/x - Step 3: Cross multiply
98,207.20x = 147,319.29 × 27,129.81 - Step 4: Simplify right side
98,207.20x = 3,996,744,899.48 - Step 5: Solve for x
x = 3,996,744,899.48/98,207.20 - Step 6: Final answer
x = 40,697.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.