Finding the Fourth Proportional to 121,338.06, 167,430.42 and 67,616.70
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Solution
The fourth proportional to 121,338.06, 167,430.42 and 67,616.70 is: 93,302.07
Step by Step Solution
- Step 1: Write the proportion equation
121,338.06 : 167,430.42 = 67,616.70 : x - Step 2: Convert to fraction form
121,338.06/167,430.42 = 67,616.70/x - Step 3: Cross multiply
121,338.06x = 167,430.42 × 67,616.70 - Step 4: Simplify right side
121,338.06x = 11,321,092,480.01 - Step 5: Solve for x
x = 11,321,092,480.01/121,338.06 - Step 6: Final answer
x = 93,302.07
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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.