Finding the Fourth Proportional to 122,686.29, 169,313.09 and 68,988.15
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Solution
The fourth proportional to 122,686.29, 169,313.09 and 68,988.15 is: 95,207.02
Step by Step Solution
- Step 1: Write the proportion equation
122,686.29 : 169,313.09 = 68,988.15 : x - Step 2: Convert to fraction form
122,686.29/169,313.09 = 68,988.15/x - Step 3: Cross multiply
122,686.29x = 169,313.09 × 68,988.15 - Step 4: Simplify right side
122,686.29x = 11,680,596,504.94 - Step 5: Solve for x
x = 11,680,596,504.94/122,686.29 - Step 6: Final answer
x = 95,207.02
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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.