Finding the Fourth Proportional to 122,540.64, 169,106.76 and 68,825.67
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Solution
The fourth proportional to 122,540.64, 169,106.76 and 68,825.67 is: 94,979.80
Step by Step Solution
- Step 1: Write the proportion equation
122,540.64 : 169,106.76 = 68,825.67 : x - Step 2: Convert to fraction form
122,540.64/169,106.76 = 68,825.67/x - Step 3: Cross multiply
122,540.64x = 169,106.76 × 68,825.67 - Step 4: Simplify right side
122,540.64x = 11,638,886,058.53 - Step 5: Solve for x
x = 11,638,886,058.53/122,540.64 - Step 6: Final answer
x = 94,979.80
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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.