Finding the Fourth Proportional to 121,917.08, 168,251.91 and 68,202.99
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Solution
The fourth proportional to 121,917.08, 168,251.91 and 68,202.99 is: 94,123.68
Step by Step Solution
- Step 1: Write the proportion equation
121,917.08 : 168,251.91 = 68,202.99 : x - Step 2: Convert to fraction form
121,917.08/168,251.91 = 68,202.99/x - Step 3: Cross multiply
121,917.08x = 168,251.91 × 68,202.99 - Step 4: Simplify right side
121,917.08x = 11,475,283,335.21 - Step 5: Solve for x
x = 11,475,283,335.21/121,917.08 - Step 6: Final answer
x = 94,123.68
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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.