Finding the Fourth Proportional to 121,319.10, 167,418.06 and 67,602.96
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Solution
The fourth proportional to 121,319.10, 167,418.06 and 67,602.96 is: 93,290.80
Step by Step Solution
- Step 1: Write the proportion equation
121,319.10 : 167,418.06 = 67,602.96 : x - Step 2: Convert to fraction form
121,319.10/167,418.06 = 67,602.96/x - Step 3: Cross multiply
121,319.10x = 167,418.06 × 67,602.96 - Step 4: Simplify right side
121,319.10x = 11,317,956,413.46 - Step 5: Solve for x
x = 11,317,956,413.46/121,319.10 - Step 6: Final answer
x = 93,290.80
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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.