Finding the Fourth Proportional to 121,377.67, 167,506.85 and 67,662.99
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Solution
The fourth proportional to 121,377.67, 167,506.85 and 67,662.99 is: 93,378.08
Step by Step Solution
- Step 1: Write the proportion equation
121,377.67 : 167,506.85 = 67,662.99 : x - Step 2: Convert to fraction form
121,377.67/167,506.85 = 67,662.99/x - Step 3: Cross multiply
121,377.67x = 167,506.85 × 67,662.99 - Step 4: Simplify right side
121,377.67x = 11,334,014,316.48 - Step 5: Solve for x
x = 11,334,014,316.48/121,377.67 - Step 6: Final answer
x = 93,378.08
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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.