Finding the Fourth Proportional to 121,913.44, 168,247.08 and 68,195.26
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Solution
The fourth proportional to 121,913.44, 168,247.08 and 68,195.26 is: 94,113.11
Step by Step Solution
- Step 1: Write the proportion equation
121,913.44 : 168,247.08 = 68,195.26 : x - Step 2: Convert to fraction form
121,913.44/168,247.08 = 68,195.26/x - Step 3: Cross multiply
121,913.44x = 168,247.08 × 68,195.26 - Step 4: Simplify right side
121,913.44x = 11,473,652,523.61 - Step 5: Solve for x
x = 11,473,652,523.61/121,913.44 - Step 6: Final answer
x = 94,113.11
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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.