Finding the Fourth Proportional to 98,097.97, 135,416.33 and 66,309.92
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Solution
The fourth proportional to 98,097.97, 135,416.33 and 66,309.92 is: 91,535.50
Step by Step Solution
- Step 1: Write the proportion equation
98,097.97 : 135,416.33 = 66,309.92 : x - Step 2: Convert to fraction form
98,097.97/135,416.33 = 66,309.92/x - Step 3: Cross multiply
98,097.97x = 135,416.33 × 66,309.92 - Step 4: Simplify right side
98,097.97x = 8,979,446,705.05 - Step 5: Solve for x
x = 8,979,446,705.05/98,097.97 - Step 6: Final answer
x = 91,535.50
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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.