Finding the Fourth Proportional to 121,951.83, 168,284.34 and 68,226.96
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Solution
The fourth proportional to 121,951.83, 168,284.34 and 68,226.96 is: 94,148.07
Step by Step Solution
- Step 1: Write the proportion equation
121,951.83 : 168,284.34 = 68,226.96 : x - Step 2: Convert to fraction form
121,951.83/168,284.34 = 68,226.96/x - Step 3: Cross multiply
121,951.83x = 168,284.34 × 68,226.96 - Step 4: Simplify right side
121,951.83x = 11,481,528,933.81 - Step 5: Solve for x
x = 11,481,528,933.81/121,951.83 - Step 6: Final answer
x = 94,148.07
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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.