Finding the Fourth Proportional to 135,227.80, 202,918.64 and 68,671.72
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Solution
The fourth proportional to 135,227.80, 202,918.64 and 68,671.72 is: 103,046.65
Step by Step Solution
- Step 1: Write the proportion equation
135,227.80 : 202,918.64 = 68,671.72 : x - Step 2: Convert to fraction form
135,227.80/202,918.64 = 68,671.72/x - Step 3: Cross multiply
135,227.80x = 202,918.64 × 68,671.72 - Step 4: Simplify right side
135,227.80x = 13,934,772,028.86 - Step 5: Solve for x
x = 13,934,772,028.86/135,227.80 - Step 6: Final answer
x = 103,046.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.