Finding the Fourth Proportional to 121,675.65, 167,910.62 and 67,961.45
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Solution
The fourth proportional to 121,675.65, 167,910.62 and 67,961.45 is: 93,785.80
Step by Step Solution
- Step 1: Write the proportion equation
121,675.65 : 167,910.62 = 67,961.45 : x - Step 2: Convert to fraction form
121,675.65/167,910.62 = 67,961.45/x - Step 3: Cross multiply
121,675.65x = 167,910.62 × 67,961.45 - Step 4: Simplify right side
121,675.65x = 11,411,448,026.24 - Step 5: Solve for x
x = 11,411,448,026.24/121,675.65 - Step 6: Final answer
x = 93,785.80
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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.