Finding the Fourth Proportional to 107,718.09, 161,502.18 and 47,713.99
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Solution
The fourth proportional to 107,718.09, 161,502.18 and 47,713.99 is: 71,537.78
Step by Step Solution
- Step 1: Write the proportion equation
107,718.09 : 161,502.18 = 47,713.99 : x - Step 2: Convert to fraction form
107,718.09/161,502.18 = 47,713.99/x - Step 3: Cross multiply
107,718.09x = 161,502.18 × 47,713.99 - Step 4: Simplify right side
107,718.09x = 7,705,913,401.50 - Step 5: Solve for x
x = 7,705,913,401.50/107,718.09 - Step 6: Final answer
x = 71,537.78
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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.