Finding the Fourth Proportional to 122,980.07, 169,717.74 and 68,532.29
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Solution
The fourth proportional to 122,980.07, 169,717.74 and 68,532.29 is: 94,577.49
Step by Step Solution
- Step 1: Write the proportion equation
122,980.07 : 169,717.74 = 68,532.29 : x - Step 2: Convert to fraction form
122,980.07/169,717.74 = 68,532.29/x - Step 3: Cross multiply
122,980.07x = 169,717.74 × 68,532.29 - Step 4: Simplify right side
122,980.07x = 11,631,145,543.12 - Step 5: Solve for x
x = 11,631,145,543.12/122,980.07 - Step 6: Final answer
x = 94,577.49
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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.