Finding the Fourth Proportional to 98,231.29, 147,347.96 and 78,634.42
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Solution
The fourth proportional to 98,231.29, 147,347.96 and 78,634.42 is: 117,952.45
Step by Step Solution
- Step 1: Write the proportion equation
98,231.29 : 147,347.96 = 78,634.42 : x - Step 2: Convert to fraction form
98,231.29/147,347.96 = 78,634.42/x - Step 3: Cross multiply
98,231.29x = 147,347.96 × 78,634.42 - Step 4: Simplify right side
98,231.29x = 11,586,621,372.78 - Step 5: Solve for x
x = 11,586,621,372.78/98,231.29 - Step 6: Final answer
x = 117,952.45
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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.