Finding the Fourth Proportional to 121,452.10, 167,681.91 and 76,192.14
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Solution
The fourth proportional to 121,452.10, 167,681.91 and 76,192.14 is: 105,194.09
Step by Step Solution
- Step 1: Write the proportion equation
121,452.10 : 167,681.91 = 76,192.14 : x - Step 2: Convert to fraction form
121,452.10/167,681.91 = 76,192.14/x - Step 3: Cross multiply
121,452.10x = 167,681.91 × 76,192.14 - Step 4: Simplify right side
121,452.10x = 12,776,042,890.63 - Step 5: Solve for x
x = 12,776,042,890.63/121,452.10 - Step 6: Final answer
x = 105,194.09
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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.