Finding the Fourth Proportional to 98,268.20, 147,431.22 and 31,707.08
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Solution
The fourth proportional to 98,268.20, 147,431.22 and 31,707.08 is: 47,569.95
Step by Step Solution
- Step 1: Write the proportion equation
98,268.20 : 147,431.22 = 31,707.08 : x - Step 2: Convert to fraction form
98,268.20/147,431.22 = 31,707.08/x - Step 3: Cross multiply
98,268.20x = 147,431.22 × 31,707.08 - Step 4: Simplify right side
98,268.20x = 4,674,613,487.04 - Step 5: Solve for x
x = 4,674,613,487.04/98,268.20 - Step 6: Final answer
x = 47,569.95
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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.