Finding the Fourth Proportional to 121,146.23, 167,181.80 and 67,430.09
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Solution
The fourth proportional to 121,146.23, 167,181.80 and 67,430.09 is: 93,053.53
Step by Step Solution
- Step 1: Write the proportion equation
121,146.23 : 167,181.80 = 67,430.09 : x - Step 2: Convert to fraction form
121,146.23/167,181.80 = 67,430.09/x - Step 3: Cross multiply
121,146.23x = 167,181.80 × 67,430.09 - Step 4: Simplify right side
121,146.23x = 11,273,084,406.89 - Step 5: Solve for x
x = 11,273,084,406.89/121,146.23 - Step 6: Final answer
x = 93,053.53
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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.